Section of physics and chemistry and section of photography and microscopy: A joint meeting of the Sections was held in the HAll of the Institute on Thursday evening, December 2nd, at eight o'clock, with Dr. George Crampton in the chair. The minutes of the previous meeting were read and approved

✍ Scribed by Joseph S. Hepburn

• Publisher: Elsevier Science
• Year: 1921
• Tongue: English
• Weight: 48 KB
• Volume: 191
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(21)91716-2

✦ Synopsis

Section of Physics and Chcmlstry.--A meeting of the Section was held in the Hall of the Institute on Thursday evening, November ilth, at eight o'clock, with Dr. Gellert Alleman in the chair. The minutes of the previous meeting were approved as read.

Dr. Ulric Dahlgren, A.B., M.S., Professor of Biology in Princeton University, delivered a lecture on the "Production of Motion by Animals." Attention was paid to amoeboid motion, and to motion by means of turgidity, of cilia, and of muscle, and also to the lever systems of motion apparatus. A description was given of the various forms of crawling, swimruing, walking, and flying.

The communication was discussed; a vote of thanks was extended to Prof. Dahlgren; and the meeting adjourned.