Committee on science and the arts

📂 Article 📅 1900 🏛 Elsevier Science 🌐 English ⚖ 121 KB

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 e×hibited an improved apparatus for a~rating beverages, which involved the employ

📂 Article 📅 1900 🏛 Elsevier Science 🌐 English ⚖ 105 KB

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.

Committee on science and the arts

📂 Article 📅 1900 🏛 Elsevier Science 🌐 English ⚖ 179 KB

Committee on science and the arts

✍ H.R. Heyl 📂 Article 📅 1900 🏛 Elsevier Science 🌐 English ⚖ 121 KB

Committee on science and the arts

📂 Article 📅 1901 🏛 Elsevier Science 🌐 English ⚖ 151 KB

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

Committee on science and the arts

📂 Article 📅 1901 🏛 Elsevier Science 🌐 English ⚖ 304 KB

Vice-President WASHINGTON JONES in the chair. Present, 148 members and visitors. Additions to membership since last report, I5. President Birkinbine, who assumed the chair, introduced Mr. Alex. J. Wurts, of Pittsburgh, who gave an interesting description of the Nernst incandescent electric lamp, as