Studies in living tissue

✍ Scribed by W. J. Baumgartner

• Book ID: 102903342
• Publisher: John Wiley and Sons
• Year: 1933
• Tongue: English
• Weight: 551 KB
• Volume: 55
• Category: Article
• ISSN: 0362-2525
• DOI: 10.1002/jmor.1050550203

✦ Synopsis

Abstract

A survey of biological literature of the present reveals a tendency to turn to the study of the living cells and tissues. This tendency is indicated by the use of microdissection, ultraviolet microscopes, transparent chambers in rabbits' ears, growing nerve cells and fibers in tailfins of amphibian larvae, and by intravitam technic on insect germ cells. The division stages of the germ cells of Anasa tristis which were carefully studied and drawn thirty‐odd years ago are now shown by actual unretouched photomicrographs. These photomicrographs confirm the drawings in many points and show other structures such as mitochondria even more clearly than the drawings do. An account of a peculiarly shaped spermatozoon which has not been described heretofore in the literature is added. The question of the great variations of shapes of spermatozoa is discussed. The advantages of the use of methods for studying living cells, especially of intravitam technic, is emphasized.