486 PRINCIPLES OF EMBRYOLOGY 



NOVIKOV, A. B., 1940. JEZ, 85, 127. Morphogenetic substances or organisers in annelid 



development. 

 o'coNNOR, R. J., I939-7- Anat., 74» 35- Experiments on the development of the amphibian 



mesonephros. 

 OFFERMAN, c. A., 1935. Bull. Acad. Set. U.R.S.S., ser. Biol, p. 129. The position effect 



and its bearing on genetics. 

 OKADA, Y. K., 1938. Growth, 2, 49. Neural induction by means of inorganic implantation. 

 OPPENHEiMER, J. M., I934<J. Pwc. Soc. cxp. Biol. Mhd., 31, 1123. Experimental studies 

 on the developing perch. 

 1934^. PNAS, 20, 536. Experiments on early developing stages of Fundulus. 

 1916a. JEZ, 72, 247. The development of isolated blastoderms of Fundulus hetero- 



clitus. 

 1936^. JEZ, 72, 409. Transplantation experiments on developing teleosts. 

 1947- Q- Reu. Biol., 22, 105. Organisation of the teleost blastoderm. 

 1953. PNAS, 39, 1 149. The development of transplanted fragments of Fundulus 

 gastrulae. 

 ORTOLANi, G., 1954. Ptibbl. Staz. Zool. Nap., 25, 161. Risultati defmitivi sulk distri- 



buzione dei territori presuntivi degli organi nel germe di Ascidie. 

 OSAWA, s. AND HAYASHi, Y., 1953. s, 118, 84. Ribonucleic acid and protein in the grow- 

 ing oocytes of Triturus pyrrhogaster. 

 PAINTER, T. s. AND REiNDORP, E., 1939. Chroitiosoma, I, 276. Endomitosis in the nurse-cells 



of the ovary of Dros. mel. 

 PALADE, G. E., 1952. Anat. Rec, 113, 33. Fine structure of mitochondria. 

 PANTELOURis, E. M., 1955. JEEM, 3, 86. Interactions between ovary and lateral oviduct in 

 Dros. mel. 

 AND WADDiNGTON, G. H., 1955 RA, 147, 539. Regulation capacities of wing and hal- 

 tere discs in wild type and bithorax Dros. 

 PASTEELS, J., 1934. Arch. anat. Micr., 30, 161. Recherches sur la morphogen^se et le deter- 

 minisme des segmentations inegales chez les Spiralia. 

 1936-37. AB, 47, 205, and 48, 105. Etudes sur la gastrulation des Vertebres meso- 

 blastiques. Teleosteens, Reptiles, Oiseaux. 



1939. Ann. Soc. Roy. Zool. Belg., 70, 33. La formation de la queue chez les Vertebres. 



1940. BR, 15, 59. Un aper9u comparatif de la gastrulation chez les Chordes. 

 1942a. JEZ, 89, 255. New observations concerning the maps of the presumptive areas 



of the young amphibian gastrula. 

 1942^. Acta Biol. Belg., I, 126. Sur I'existence eventueUe d'une croissance au cours de 



las gastrulation des Vertebres. 

 195 1. Bull. Soc. Zool. France, 76, 231. Centre organisateur et potential morphogene- 



tique chez les Batrachiens. 

 1953. JEEM, I, 5 and 125. Les effets de la centrifugation sur la blastula et la jeune 

 gastrula des Amphibiens. 

 PATTEN, B. M., 1950. The early embryology of the chick., 4th ed. Blakiston, Phila.; Lewis, 



London. 

 PATTERSON, J. F., igog.J. Morph., 20, 65. Gastrulation in the pigeon's egg. 

 PATTERSON, J. T., 1913, J. Morph., 24, 559. Polyembryonic development in Tatusia 



novemcincta. 

 PAULi, M. E., 1927. Zeits. wiss. ZooL, 70, i. Beitrage zur Entwicklungsgeschichte der 

 Musciden. 



