I'afie 



FIELD OPERATIONS 



Limb Field Operations 27h 



Eye Field Operations 289 



Heart Field Operations — 505 



Eegeneration - - — —• 512 



ENDOCRINE FACTOBS IN EAKLY DEVELOPMEMT 



Effect of Thyroid and of Iodine on Amphibian Metamorphosis 522 



ThyroideotoncT and Early Amphibian Development — 527 



Bypophysectomy and Early Amphibian Development _ 529 



CHEMICAL EMBBYOLOGY 



Cytochemical Tests for Gametes and Embryos of Amphibia ~ 552 



CHECMOSOMES AND DEVELOPMENT 



Heteroploldy Induced by Variations in Temperature 5't-9 



Hybridization and Early Development 55° 



FISH 



Experimental Embryology of Fish - _ 5^0 



The Care and Feeding of Fish - — 56o 



Fish Diseases - 365 



Fish Suitable for Laboratory Experimentation 5^7 



Oryzias latipes — 571 



Platypoecilus maculatus - 582 



Fundulus heteroclitus _ 589 



Experimental Procedures with Fish Eggs and Embryos - 595 



CHICK 



Experimental Chick Embryology - '•■19 



Procuring and Care of Living Material ~ '+19 



Technical and Operating Equipment — - ~ '•■20 



The Removal of Chick Blastoderms or Embryos — ■- '••22 



Histological Procedures ■■•■- ^21+ 



Methods for Observing the Development of the Chick Embryo '<-25 



Morphogenetic Movements Determined by Vital Staining and 



Charcoal Particles - '••28 



Explanting and Cultivating Early Chick Embryos in Vitro '+52 



The Method of Chorlo-allantoic Grafting '+'•■1 



Intra- embiyonl c Transplantatl ons - - - '•■'+7 



Glossary 



1+5'+ 



" Omne vl vum ex ovo" - -- - ^1 



11 



