Details of exhibit
- Exhibition:
- 1913 Fifty-eighth Annual Exhibition of the Royal Photographic Society of Great Britain
- Exhibit title:
- Collodial tests
- Exhibitor:
- Ernest Marriage
- Section:
- III. Scientific and Technical Exhibits, Natural History, Colour Prints, Lantern and Stereoscopic Slides
- Group Title:
- Microscopical examination of Jams
- Exhibit No.:
- 592
- Description:
- of fruit jellies, i.e., jams filtered
The whole exhibit represents methods of microscopic and micro-chemical analysis of colloids, jams in particular.
for this purpose. Jelly containing 5 per cent. of potassium iodide is run into a test and a 20 per cent. solution of lead nitrate flowed on the top. Test tubes natural size.
A, Apple
B, Gooseberry and Apple, equal parts.
C, Gooseberry.
D, Loganberry.
E, Raspberry.
Three photomicrographs x 100 of the lead iodide aggregates from tubes A, B and C. - Exhibit type:
- Photograph
- Process:
- [Not Listed] ()
- Award:
- medal
