exhibition of a series of negative and positive lantern slides of the same subject, in which these various defects and their proper treatment were sllowll in a most instructive way. ~[r. Chas. t'. Jacobs described and eΓhibited an improved apparatus for a~rating beverages, which involved the employ
Committee on science & the arts
- Book ID
- 104116813
- Publisher
- Elsevier Science
- Year
- 1909
- Tongue
- English
- Weight
- 587 KB
- Volume
- 168
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
β¦ Synopsis
THIS file is the result of an effort on the part of Alexis Vernaz of Yverdon, Switzerland, to save from the scrap-heap a large lot of accidentally hard castings. It was so successful PLATE I.
π SIMILAR VOLUMES
lead is most so. This suggests a close relation, perhaps identity, with the X-rays. Recently the Curies are said to have separated still a third radioactive substance from pitchblende. ERRA'FA. AkT.: " Fire Hazards." Parsons.
with the Photographic and Microscopic Section, prepared and issued a joint bulletin giving instructions to its own aud other observers of the total eclipse of May 28,1goo. Also, steps were taken looking to the appointment of a special committee to confer with the several scientific and educational i