author's abstract of this paper issued by 

 the bibliographic service, november 24 



THE EFFECT OF INANITION UPON THE DEVELOP- 

 MENT OF THE GERM GLANDS AND GERM 

 CELLS OF FROG LARVAE 1 



W. W. SWINGLE 



Department of Zoology, University of Kansas 



FOUBTEEN TEXT FIGURES 



The following experiment was undertaken with the object of 

 determining whether prolonged starvation of larval frogs has any 

 effect upon the development of the gonads and germ cells of 

 these animals. 



Frog larvae are excellent forms with which to work in any 

 study of inanition; the tadpoles are easily handled, require little 

 attention, and the period of larval life offers good opportunities 

 for one to gauge the influence of starvation upon any organ or 

 organ system. 



LITERATURE 



There is a large amount of literature dealing with the general 

 subject of inanition, but so far as the present writer is aware, 

 there is but one brief mention of the effects of starvation upon 

 the germ cells and the gonads of larval frogs. This reference is a 

 brief record by Nussbaum of some experiments he performed in 

 the late seventies. In view of the relation between his work 

 and the present experiment, I shall quote him verbatim: 



Die sogleich zu beschreibenden Veranderungen der primaren Anlage 

 sind durchaus typische, indem sie in derselben Reihenfolge an einer 

 sehr grossen Zahl von Exemplaren in zwei aufeinander folgenden 

 Jahren beobachtet wurden. Allgemein giiltige Angaben uber zeitliches 

 Auftreten, sowie pracise Bestimmungen der Beziehungen zum Er- 

 scheinen gewisser anderer Anlagen, beispielsweise der Beine, lassen sich 



1 Reported at the annual meeting 1915, of the American Association for the 

 Advancement of Science, Columbus, Ohio. 



545 



