1914: exhibits in section "Scientific and Technical Photographs, &c."

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List of 202 exhibits from the catalogue for this exhibition.
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Exhibit no. Exhibitor Exhibit title Section Picture Browse catalogue
291 Duc de Broglie Negatives and prints of spectra of Röentgen Rays Scientific and Technical Photographs, &c.  yes catalogue page
292 Duc de Broglie Negatives and prints of spectra of Röentgen Rays Scientific and Technical Photographs, &c.  yes catalogue page
293 Dominion Observatory Sun Spectra Scientific and Technical Photographs, &c.    catalogue page
294 Dominion Observatory Stellar Spectra Scientific and Technical Photographs, &c.    catalogue page
295 Stellar Spectra Scientific and Technical Photographs, &c.    catalogue page
301 Dominion Observatory Lightning Scientific and Technical Photographs, &c.    catalogue page
302 Dominion Observatory The Moon Scientific and Technical Photographs, &c.    catalogue page
296 Spectroscopic Laboratory, Royal College of Science Nickel spark spectra under pressure Scientific and Technical Photographs, &c.    catalogue page
297 Spectroscopic Laboratory, Royal College of Science Nickel spark spectra under pressure Scientific and Technical Photographs, &c.    catalogue page
298 G. V. McCauley
(Henry Crew) 		Spectrum of the arc between electrodes of metallic calcium Scientific and Technical Photographs, &c.    catalogue page
299 300 325 326 327 328 Harvard College Observatory Photographs illustrative of methods first introduced at the Harvard Observatory rather than pictures of celestial objects. The show the first stellar photograph, the first photograph of an occultation and of the spectra of an aurora, a meteor and of ligh Scientific and Technical Photographs, &c.    catalogue page
303 Yerkes Observatory Solar Prominences Scientific and Technical Photographs, &c.    catalogue page
304 Yerkes Observatory Solar Prominences Scientific and Technical Photographs, &c.    catalogue page
305 Yerkes Observatory Solar Prominences Scientific and Technical Photographs, &c.    catalogue page
306 Yerkes Observatory Solar Prominences Scientific and Technical Photographs, &c.    catalogue page
307 Yerkes Observatory Solar Prominences Scientific and Technical Photographs, &c.    catalogue page
308 Yerkes Observatory The Moon, 16 days old Scientific and Technical Photographs, &c.    catalogue page
309 Yerkes Observatory The Moon, 10 days old Scientific and Technical Photographs, &c.    catalogue page
310 Yerkes Observatory Moorehouse's Comet, 1908, October 15th Scientific and Technical Photographs, &c.    catalogue page
311 Yerkes Observatory Moorehouse's Comet, 1908, November 16th Scientific and Technical Photographs, &c.    catalogue page
312 Yerkes Observatory Halley's Comet, 1910, May 29th Scientific and Technical Photographs, &c.    catalogue page
313 Yerkes Observatory Brooks' Comet, 1911, October 23rd Scientific and Technical Photographs, &c.    catalogue page
314 Yerkes Observatory Photographs of Saturn, 1911, November 19th Scientific and Technical Photographs, &c.    catalogue page
315 Yerkes Observatory Photographs of Mars. An enlarging lens was used at the eye of the telescope. Scientific and Technical Photographs, &c.    catalogue page
316 Yerkes Observatory Region of the Great Nebula of Rho Ophiuchi Scientific and Technical Photographs, &c.    catalogue page
317 Yerkes Observatory Remarkable region north of Theta Ophiuchi Scientific and Technical Photographs, &c.    catalogue page
318 Yerkes Observatory Star clouds in Sagittarius Scientific and Technical Photographs, &c.    catalogue page
319 Yerkes Observatory Star clouds in Sagittarius Scientific and Technical Photographs, &c.    catalogue page
320 Yerkes Observatory Star clouds in Sagittarius Scientific and Technical Photographs, &c.    catalogue page
321 Yerkes Observatory Region of Messier 11 Scientific and Technical Photographs, &c.    catalogue page
322 Yerkes Observatory The Nortth America Nebula Scientific and Technical Photographs, &c.    catalogue page
323 Yerkes Observatory The Nebula N.G.C. 6960 and 6992 and a large meteor Scientific and Technical Photographs, &c.    catalogue page
324 Yerkes Observatory Great nebulous region in Cepheus Scientific and Technical Photographs, &c.    catalogue page
329 Mount Wilson Solar Observatory N.G.C. 278 = H I 159 Cassiopeiæ Scientific and Technical Photographs, &c.    catalogue page
330 Mount Wilson Solar Observatory N.G.C. 650-651 = M 76 = H I 193 Scientific and Technical Photographs, &c.    catalogue page
331 Mount Wilson Solar Observatory N.G.C. 1501 Scientific and Technical Photographs, &c.    catalogue page
332 Mount Wilson Solar Observatory N.G.C. 2841 = H I 205 Scientific and Technical Photographs, &c.    catalogue page
333 Mount Wilson Solar Observatory N.G.C. 4449 Scientific and Technical Photographs, &c.    catalogue page
334 Mount Wilson Solar Observatory N.G.C. 4567-4568 Scientific and Technical Photographs, &c.    catalogue page
335 Mount Wilson Solar Observatory N.G.C. 4736 = M 94 Scientific and Technical Photographs, &c.    catalogue page
336 Mount Wilson Solar Observatory N.G.C. 5383 Scientific and Technical Photographs, &c.    catalogue page
337 Mount Wilson Solar Observatory N.G.C. 5886 Scientific and Technical Photographs, &c.    catalogue page
338 Mount Wilson Solar Observatory N.G.C. 6543 = H IV 37 Draconis Scientific and Technical Photographs, &c.    catalogue page
339 Mount Wilson Solar Observatory N.G.C. 7009 Scientific and Technical Photographs, &c.    catalogue page
340 Mount Wilson Solar Observatory N.G.C. 7217 = H II 207 Pegasi Scientific and Technical Photographs, &c.  yes catalogue page
341 N.G.C. 7662 Scientific and Technical Photographs, &c.    catalogue page
342 Mount Wilson Solar Observatory N.G.C. 2403 = H V 44 Camelop Scientific and Technical Photographs, &c.    catalogue page
343 Ch. Fabry
(M. Buisson) 		Microphotometer for the measurement of the opacities of negatives Scientific and Technical Photographs, &c.    catalogue page
344 André Callier Fig. I. Diaphragm projected on to slide Scientific and Technical Photographs, &c.    catalogue page
344 André Callier Fig. II. The Instrument Scientific and Technical Photographs, &c.    catalogue page
344 André Callier Fig. III. Spectrum obtained with widely opened slit Scientific and Technical Photographs, &c.    catalogue page
345 André Callier The Callier-Goldberg microphotometer, side view and sectional diagram Scientific and Technical Photographs, &c.    catalogue page
346 André Callier The same, front view Scientific and Technical Photographs, &c.    catalogue page
347 F. Martin-Duncan First and only photomicrograph of the first specimen of the puerulus stage of Palinurus vulgaris to be found in British water. Captured off the Eddystone, August, 1913, and identified and described by Prof. Bouvier. Scientific and Technical Photographs, &c.    catalogue page
348 F. Martin-Duncan The Ray Scientific and Technical Photographs, &c.    catalogue page
349 Dr. G. H. Rodman The trachea of the Larva of the Dytiscus Beetle, x 134 Scientific and Technical Photographs, &c.    catalogue page
350 G. Ardasseer Haliclystus octoradiata, x 24 Scientific and Technical Photographs, &c.    catalogue page
351 F. Martin-Duncan Sea Anemones Scientific and Technical Photographs, &c.    catalogue page
352 Walter Bagshaw Bell coralline, x 56 Scientific and Technical Photographs, &c.    catalogue page
353 F. Martin-Duncan Studies in marine biology Scientific and Technical Photographs, &c.    catalogue page
354 F. Martin-Duncan Studies in the embryology of the chick Scientific and Technical Photographs, &c.    catalogue page
355 H. Lloyd Hind Photomicrographs illustrating the results of the radium treatment of cancer, from Dr. N. S. Finzis' cases Scientific and Technical Photographs, &c.    catalogue page
356 A. E. Bawtree Bank Note security Scientific and Technical Photographs, &c.    catalogue page
357 A. E. Bawtree Viewing instrument for documents with yellow tints Scientific and Technical Photographs, &c.    catalogue page
358 A. E. Bawtree Demonstration of one of the methods of Bank Note protection shown in frame No. 356 Scientific and Technical Photographs, &c.    catalogue page
359 A. E. Bawtree An instrument for communicating colours by telegraph or telephone Scientific and Technical Photographs, &c.    catalogue page
360 Walt E. Barton Tongue of House Cricket Scientific and Technical Photographs, &c.    catalogue page
361 Ch. Fabry
(M. Buisson) 		Interferences in the Nebula of Orion Scientific and Technical Photographs, &c.    catalogue page
362 to 370 William Chesterman Photomicrographs of sections of an early human pregnancy Scientific and Technical Photographs, &c.    catalogue page
371 J. G. Bradbury Section, Heart of Frog, x 17 Scientific and Technical Photographs, &c.    catalogue page
372 J. G. Bradbury Crab Spider, x 14 Scientific and Technical Photographs, &c.    catalogue page
373 J. G. Bradbury Section, Spruce Fir, x 19 Scientific and Technical Photographs, &c.    catalogue page
374 J. G. Bradbury Section, Young Mouse, x 7 Scientific and Technical Photographs, &c.    catalogue page
375
376
377		 Miss M. A. Booth Three frames of medium and low power photomicrographs without colour screens Scientific and Technical Photographs, &c.    catalogue page
378 Dr. Fred. Vlés
(Lucienne Chevroton) 		Cinematographic record of the Larynx of a Living Woman Scientific and Technical Photographs, &c.    catalogue page
379 Dr. P. G. Nutting Photomicrographs of plate taken in investigating the resolving powers of various emulsions Scientific and Technical Photographs, &c.    catalogue page
380 Orin Tugman Photomicrographs of a Knife-edge Image, showing resolving power and grain distribution in negatives exposed to monochromatic light. Scientific and Technical Photographs, &c.    catalogue page
381 to 385 Stephane Leduc Crystallisation in Colloids Scientific and Technical Photographs, &c.    catalogue page
382 Stephane Leduc Crystallisation in Colloids Scientific and Technical Photographs, &c.    catalogue page
383 Stephane Leduc Crystallisation in Colloids Scientific and Technical Photographs, &c.    catalogue page
384 Stephane Leduc Crystallisation in Colloids Scientific and Technical Photographs, &c.    catalogue page
385 Stephane Leduc Crystallisation in Colloids Scientific and Technical Photographs, &c.    catalogue page
386 to 390 Piérre Goby Radiographs of star fish, flowers, insects and seedpods Scientific and Technical Photographs, &c.    catalogue page
387 Piérre Goby Radiographs of star fish, flowers, insects and seedpods Scientific and Technical Photographs, &c.    catalogue page
388 Piérre Goby Radiographs of star fish, flowers, insects and seedpods Scientific and Technical Photographs, &c.    catalogue page
389 Piérre Goby Radiographs of star fish, flowers, insects and seedpods Scientific and Technical Photographs, &c.    catalogue page
390 Piérre Goby Radiographs of star fish, flowers, insects and seedpods Scientific and Technical Photographs, &c.    catalogue page
391 to 393 Dr. R. Knox Radiographs of dry skull Scientific and Technical Photographs, &c.    catalogue page
392 Dr. R. Knox Radiographs of dry skull Scientific and Technical Photographs, &c.    catalogue page
393 Dr. R. Knox Radiographs of dry skull Scientific and Technical Photographs, &c.    catalogue page
394 Dr. R. Knox Reduction from 15 x 12 in. negatives showing tuberculosis and new growths in lungs Scientific and Technical Photographs, &c.    catalogue page
395 Dr. R. Knox Prints from a case of hour-glass contraction of stomach with Pyloric Stenosis Scientific and Technical Photographs, &c.    catalogue page
396 Dr. R. Knox Prints from a case of hour-glass contraction of stomach with Pyloric Stenosis Scientific and Technical Photographs, &c.    catalogue page
397 Dr. G. Feodor Haenisch Patient sent for stone examination Scientific and Technical Photographs, &c.    catalogue page
398 Dr. G. Feodor Haenisch Penetrating ulcer of stomach Scientific and Technical Photographs, &c.    catalogue page
399 Miss Agnes Brooks Gun-shot wound of arms and splintering of bone Scientific and Technical Photographs, &c.    catalogue page
400 Miss Agnes Brooks Bismuth meal in caecum. 1/5 second Scientific and Technical Photographs, &c.    catalogue page
401 Miss Agnes Brooks Skiagram of fish Scientific and Technical Photographs, &c.    catalogue page
402 Miss Agnes Brooks Lateral exposure of spine. 3/10 second Scientific and Technical Photographs, &c.    catalogue page
403 Dr. G. H. Rodman Radiograph of a Rat, illustrating the manner in which a Terrier kills by breaking the back Scientific and Technical Photographs, &c.    catalogue page
404 Dr. G. H. Rodman Radiograph in pseudo-relief of a pair of Leitz-prism glasses Scientific and Technical Photographs, &c.    catalogue page
405 Dr. J. Hall-Edwards Radiographs of Flowers Scientific and Technical Photographs, &c.    catalogue page
406 Dr. J. Hall-Edwards Radiographs of Flowers Scientific and Technical Photographs, &c.    catalogue page
407 Lloyd A. Jones Group of Pictures submitted as a demonstration of the production of photographs according to a set of fixed rules Scientific and Technical Photographs, &c.    catalogue page
408 to 458 Geological Survey Selection of Photographs illustrating the geology and physiography of the United States Scientific and Technical Photographs, &c.    catalogue page
459 Arthur Frost Hidden wonders of the Oat plant Scientific and Technical Photographs, &c.    catalogue page
460 Arthur Frost Life-stages of the Stick Insect Scientific and Technical Photographs, &c.    catalogue page
461 Alfred E. Tonge Resting attitudes of British Moths, showing protective resemblance. All natural size. Scientific and Technical Photographs, &c.    catalogue page
462 Hugh Main Insects in situ, all natural size Scientific and Technical Photographs, &c.    catalogue page
463 A. J. Fuller Scorpion, Opisthophthalmus Karrooensis (The Karroo burrowing scorpion), natural size Scientific and Technical Photographs, &c.    catalogue page
464 A. J. Fuller Scorpion, Opisthophthalmus Karrooensis (The Karroo burrowing scorpion), natural size Scientific and Technical Photographs, &c.    catalogue page
465 Locust (Phymateus morbillosus) Scientific and Technical Photographs, &c.    catalogue page
466 Locust (Phymateus morbillosus) Scientific and Technical Photographs, &c.    catalogue page
466A Norman Gill Cerambyeid beetle. Sub-family Laminœ Focality - Jeolikote, Kumaon, India Scientific and Technical Photographs, &c.    catalogue page
467 Hugh Main Snake Fly (Raphidia notata) ?x 2 Scientific and Technical Photographs, &c.    catalogue page
468 Rev. A. E. Corner Blue Persian Kittens Scientific and Technical Photographs, &c.    catalogue page
469 Margaret and Harry Baker Striding Edge, Helvellyn Scientific and Technical Photographs, &c.    catalogue page
470 Miss Onslow Rough-haired terrier Scientific and Technical Photographs, &c.    catalogue page
471 Miss Mabel L. Oliver "Two gay old dogs" Scientific and Technical Photographs, &c.    catalogue page
472 Miss Frances Pitt The Marten "Inquisitive." Scientific and Technical Photographs, &c.    catalogue page
473 Miss Frances Pitt The Marten Scientific and Technical Photographs, &c.    catalogue page
474 Miss Onslow Beagle Pups Scientific and Technical Photographs, &c.    catalogue page
475 Henry Irving Polar Bears Scientific and Technical Photographs, &c.    catalogue page
476 H. Armytage Sanders Study of Sedge Warbler Scientific and Technical Photographs, &c.    catalogue page
477 Ralph Chislett A Male Golden Plover Scientific and Technical Photographs, &c.    catalogue page
478 Thomas Mason Kittiwake Gulls Scientific and Technical Photographs, &c.    catalogue page
479 C. W. Jesson Knight Noctule Bats with young Scientific and Technical Photographs, &c.    catalogue page
480 C. W. Jesson Knight Carrion Crow at her nest Scientific and Technical Photographs, &c.    catalogue page
481 C. W. Jesson Knight Rook at her nest Scientific and Technical Photographs, &c.    catalogue page
482 C. W. Jesson Knight Female Little Owl about to leave her nest Scientific and Technical Photographs, &c.    catalogue page
483 C. W. Jesson Knight Greater Spotted Woodpecker at nesting hole Scientific and Technical Photographs, &c.    catalogue page
484 C. W. Jesson Knight Kestrel arriving at her nest with Meadow Pipit Scientific and Technical Photographs, &c.    catalogue page
485 C. W. Jesson Knight Green Woodpecker at nesting hole Scientific and Technical Photographs, &c.    catalogue page
486 C. W. Jesson Knight Heron feeding young Scientific and Technical Photographs, &c.    catalogue page
487 Thomas Mason Young Peregrine Falcons Scientific and Technical Photographs, &c.    catalogue page
488 Miss E. L. Turner Coots Scientific and Technical Photographs, &c.    catalogue page
489 Abraham Johns The Cape Thicknee Scientific and Technical Photographs, &c.    catalogue page
490 A. Ernest Scott Head of a short-toed Eagle Scientific and Technical Photographs, &c.    catalogue page
491 Thomas Robinson Redshank alarmed Scientific and Technical Photographs, &c.    catalogue page
492 Thomas Robinson Redshank covering her eggs Scientific and Technical Photographs, &c.    catalogue page
493 Miss E. L. Turner Waxwings Scientific and Technical Photographs, &c.    catalogue page
494 Miss E. L. Turner Redshank wading Scientific and Technical Photographs, &c.    catalogue page
495 Hubert Vardey Black-head Gull with newly hatched young Scientific and Technical Photographs, &c.    catalogue page
496 William Farren Goldfinch Scientific and Technical Photographs, &c.    catalogue page
497 Maurice H. Fox The Rook (female) brooding Scientific and Technical Photographs, &c.    catalogue page
498 Maurice H. Fox The Rook (female) brooding Scientific and Technical Photographs, &c.    catalogue page
499 Maurice H. Fox Cawing for more food Scientific and Technical Photographs, &c.    catalogue page
500 Maurice H. Fox The Male Rook caws his satisfaction as the female lines the nest with the leaves he has brought her. Scientific and Technical Photographs, &c.  yes catalogue page
501 T. M. Blackman Black-headed Gull arriving at nest Scientific and Technical Photographs, &c.    catalogue page
502 W. J. Palmer Oyster-catcher on nest Scientific and Technical Photographs, &c.    catalogue page
503 W. J. Palmer Lapwing on nest Scientific and Technical Photographs, &c.    catalogue page
504 T. M. Blackman The Little Tern alighting on her nest Scientific and Technical Photographs, &c.    catalogue page
505 W. J. Palmer Female Stonechat with food for young Scientific and Technical Photographs, &c.    catalogue page
506 Edward J. Jacob Feeding attitude of Flamingo, showing how equilibrium is kept Scientific and Technical Photographs, &c.    catalogue page
507 Edward J. Jacob Resting attitude of Flamingo Scientific and Technical Photographs, &c.    catalogue page
508 Miss Grace Kearton Black Tern on nest Scientific and Technical Photographs, &c.    catalogue page
509 Wm. Wilson Nightjar. Example of protective coloration Scientific and Technical Photographs, &c.    catalogue page
510 Miss Grace Kearton Dartford Warbler leaving nest Scientific and Technical Photographs, &c.    catalogue page
511 Miss M. Best Red-throated Diver, arrival at the nest Scientific and Technical Photographs, &c.    catalogue page
512 Miss Grace Kearton Common Tern alighting by nest Scientific and Technical Photographs, &c.    catalogue page
513 Miss Grace Kearton Avocet on nest Scientific and Technical Photographs, &c.    catalogue page
514 Miss M. Best Red-throated Diver approaching her nest Scientific and Technical Photographs, &c.    catalogue page
515 H. B. Macpherson Blackcock, displaying Scientific and Technical Photographs, &c.    catalogue page
516 Miss Grace Kearton Young Marsh Harriers Scientific and Technical Photographs, &c.    catalogue page
517 to 521 H. B. Macpherson Photographs illustrating the habits of the Golden Eagle at nest Scientific and Technical Photographs, &c.    catalogue page
522 523 524 H. B. Macpherson Photographs of Gull, Hoodies, etc., feeding on carrion Scientific and Technical Photographs, &c.    catalogue page
525 H. B. Macpherson Mountain Hare in a winter blizzard Scientific and Technical Photographs, &c.    catalogue page
526 J. W. Stamp A Leveret Scientific and Technical Photographs, &c.    catalogue page
527 Percy W. Morris Hyacinth Scientific and Technical Photographs, &c.    catalogue page
528 Alfred W. Dennis Some galls caused by Diptera, x 1 Scientific and Technical Photographs, &c.    catalogue page
529 to 533 Edward J. Bedford British Orchids photographed in situ Scientific and Technical Photographs, &c.  yes catalogue page
534 Chas. Macnamara Some Orchids of Eastern Canada Scientific and Technical Photographs, &c.    catalogue page
535 Chas. Macnamara Some Orchids of Eastern Canada Scientific and Technical Photographs, &c.    catalogue page
536 Miss Mary C. Eames London Pride (Saxifraga umbrosa) on a sea-cliff, Achill Island Scientific and Technical Photographs, &c.    catalogue page
537 Owen W. Gwendley Thomas Peonies Scientific and Technical Photographs, &c.    catalogue page
538 Halksworth Wheeler Interior of Parish Church, Folkestone Scientific and Technical Photographs, &c.    catalogue page
539 Dr. Charles Atkin Swan Storm on the Jungfrau. Scientific and Technical Photographs, &c.    catalogue page
540 to 546 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
541 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
542 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
543 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
544 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
545 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
546 Dr. König Prints by the Pinatype process Scientific and Technical Photographs, &c.    catalogue page
547 Eastman Kodak Company Set of Wratten Photometric Filters for use in the photometric comparison of lights of different colours, with technical data Scientific and Technical Photographs, &c.    catalogue page
548 to 553 Frederic Eugene Ives Trichrome Paper Prints Scientific and Technical Photographs, &c.    catalogue page
554 and 555 Vaughan Cornish Landslides and upheavals in the Panama Canal Scientific and Technical Photographs, &c.    catalogue page
555 Vaughan Cornish Landslides and upheavals in the Panama Canal Scientific and Technical Photographs, &c.    catalogue page
[556] Lt. G. T. Porter Netheravon Village, Wilts (329) Scientific and Technical Photographs, &c.    catalogue page
[557] Lt. G. T. Porter (1) Salisbury, Wilts (322) Scientific and Technical Photographs, &c.    catalogue page
[557] Lt. G. T. Porter (2) R.F.A. Practice Camp, Larkhill (327) Scientific and Technical Photographs, &c.    catalogue page
[557] Lt. G. T. Porter (3) South Farnborough (196) Scientific and Technical Photographs, &c.    catalogue page
[557] Lt. G. T. Porter (4) Downton Village (319) Scientific and Technical Photographs, &c.    catalogue page
[558] Lt. G. T. Porter (1) Review on Perham Down (304) Scientific and Technical Photographs, &c.    catalogue page
[558] Lt. G. T. Porter (2) Review on Perham Down (312) Scientific and Technical Photographs, &c.    catalogue page
[558] Lt. G. T. Porter (3) Inspection by H.M. The King (257) Scientific and Technical Photographs, &c.    catalogue page
[558] Lt. G. T. Porter (4) Inspection by Foreign Attachés (336) Scientific and Technical Photographs, &c.    catalogue page
[558] Lt. G. T. Porter (5) R.F.C. (M.W.) Athletic Sports (291) Scientific and Technical Photographs, &c.    catalogue page
[559] Lt. G. T. Porter Aldershot (206) Scientific and Technical Photographs, &c.    catalogue page
[559] Lt. G. T. Porter (2) Farnborough, Queen's Parade (207) Scientific and Technical Photographs, &c.    catalogue page
[559] Lt. G. T. Porter (3) Concentration Camp and Permanent Station, Netheravon (287) Scientific and Technical Photographs, &c.    catalogue page
[559] Lt. G. T. Porter (4) Central Flying, Upavon (326) Scientific and Technical Photographs, &c.    catalogue page