178 THE AMPHIBIAN GERMINAL VESICLE 



Rii;i''KKENCES : 



Brachet, J., 1959 " "Quelques proprieties chlmlquea de la veslcule germlnatlve Isolee." 



Arch. f. exper. Zellforsch. 22:51+1. 

 Diiryee, W. E., 1938 - "A microdissection study of amphibian chromosomes." Biol. Bull. 



75:5^^5. 

 La Coiir, L., 19^1 - "Aceto-orceln: a new stain- fixative for chromosomes." Stain Techno. 



16:169. 

 Nehel, B. E., I959 - "Chromosome structure." Bot. Eev. 5:565. 

 Oguma, K. & S. Makino, 1957 - "A new list of the chromosome numhers in Vertehrata." Jour. 



Fac. Scl. Hakkaido Imp. Univ. Japan. 5:297. 

 Strauh, J., 19^+5 - "Chromosomenstructur." Naturwiss. 51=97. 

 Waddington, G. H. , 1959 - "The physico-chemical structure of the chromosomes and the gene." 



Am. Nat. 75:500. 



"Liquid crystals , it is to be noted, are not important 

 for biology and embryology, because they manifest certain 

 properties which can be regarded as analogous to those which 

 living systems manifest (models), but because living systems 

 ac tually are liquid crystals , or, it would be more accurate 

 to say, the par acrys tall ine state undoubtedly exists in 

 liv ing cells . " 



J. Needham 1936: "Order and Life" 



"The species is contained in the egg of the hen as 

 completely as in the hen, and the hen's egg differs from 

 the frog's egg as the hen from the frog. 



"The adult organi zat ion is ident ical in its individual- 

 ity with that of the egg." 



C. 0. Whitman 



"Nature is never more perfect than in small things. 



Pliny 



