POOL, T. B.; Ph.D. - Dept. of Anat., Health Sci. Ctr., Univ. of Texas, 7703 Floyd Curl Drive, SAN 



ANTONIO, TX 78284, USA 

 a The role of intracellular water and elements (Na, K, CI, Mg, etc.) in the regulation of cell prolifera- 

 tion in early development (X-ray microtome analysis of frozen tissues). (Amphibia), Callus 



domesticus (Aves) 

 PORZIG, Ms. E. F.; Ph.D. - Sect. Exp. Embryol., Lab. of Vision Res., Natl. Eye Inst., Natl. Inst, of 



Health, BETHESDA. MD 20014, USA 

 a Development of the conjunctival papillae and scleral ossicles. Callus domesticus (Aves) 

 b Calactosyltransferase activity in the neural retina during development (cell surface, cellular 



recognition, cell adhesion). Same species as a 

 POSTLETHWAIT, J. H.; Ph.D. - Dept. of Biol., Univ. of Oregon, EUCENE, OR 97403, USA 

 a Mechanism of action of homoeotic mutants. Drosophila melanogaster (Diptera) 

 b Hcritability of sex determination. Same species as a 

 c Hormonal and genetic control of oogenesis. Same species as a 

 d Hormonal regulation of acid phosphatase activity. Same species as a 



POTTER, Ms. S. W.; Ph.D. - Dept. of Zool., Oregon State Univ., CORVALLIS, OR 97330, USA 

 a Cell interactions during blastocyst implantation in vitro. Mus musculus (Rodentia) 

 POULSON, D. F.; Ph.D., Prof. - Dept. of Biol., Kline Biol. Tower, Yale Univ., NEW HAVEN, CT 



06520, USA 

 POURANY, Ms. A.; M.Sc. - Dept. of Anat., Jawaharlal Inst, of Postgrad. Med. Educ. and Res., 



PONDlCHERRY-605006, India 

 a Histogenesis and morphometry of endocrine pancreas. Homo sapiens (Primates) 

 PRAHLAD, K. V.; Ph.D., Prof. - Dept. of Biol. Sci., Northern Illinois Univ., DeKALB, IL 60115, 



USA 

 a Biochemical and morphological effects of thyroid hormones on embryonic tissues. Xenopus 



laevis (Anura) 

 b Effect of pesticides on embryogenesis and initiation of endocrine function, especially in the 



thyroid gland. Xenopus laevis (Anura), Callus domesticus (Aves) 

 PRASAD, M. R. N.; Ph.D., Prof. - Dept. of Zool., Univ. of Delhi, DELHI 110007, India 

 PRASAD, T. K. - Dept. of Biosci., Sardar Patel Univ., VALLABH VIDYANAGAR 388120, Cujarat, 



India 

 a Physio-anatomical studies in shoot buds. Clerodendrum merme, C. splendens, C. infortunatum 



(Verbenaceae), Quisqualis indicus (Combretaceae), Murraya koenigii (Rutaceae) and other Dico- 



tyledonae 

 PRATT R M ; Ph.D. - Craniofac. Devi. Sect., Lab. of Developm. Biol, and Anomalies, Natl. Inst. 



of bent. Res.. N.I.H., Bldg. 30, Rm 405, BETHESDA, MD 20014, USA 

 a Biochemical and morphological changes in the epithelium of the secondary palate at the time of 



programmed cell death. (Rodentia) 

 b Programmed cell changes in the secondary palate: lysosomal enzymes, DNA and RNA synthesis, 



acid mucopolysaccharide and glycoprotein synthesis, collagen synthesis, the role of cyclic AMP 



and epidermal growth factor (EGF). (Rodentia) 

 c Effects of agents producing cleft palate in vivo on growth, DNA, protein synthesis, etc. of palatal 



mesenchyme cells in vitro. (Rodentia) 

 d Growth, steroid and cyclic nucleotide binding proteins, susceptibility to glucocorticoids of 



palatal cells from strains with different response to cortisone. Mus musculus (Rodentia) 

 e Migration of cranial neural crest cells: nature and origin of extracellular matrix; biochemistry of 



crest cells cultured in vitro; biochemical factors that may control differentiation. (Rodentia) 

 PR AY, T. R.; Ph.D., Prof. - Dept. of Biol. Sci., Univ. of S. California, University Park, LOS ANGELES, 



CA 90007, USA 

 PRITCHARD, E. T.; Ph.D., Prof. - Dept. of Oral Biol., Fac. of Dent., Univ. of Manitoba, WINNIPEG, 



Man, R3E 0W3, Canada 

 a Arylesterases and their relation to secretion in growing salivary gland. Rattus spec. (Rodentia) 

 b Relation of sulfoUpid metabolism to age and secretory stimuh in salivary gland. Same species as 



a 

 PRZYBYLSKl. R. J.; Ph.D., Assoc. Prof. - Dept. of Anat., Developm. BioL Ctr., Case Western Reserve 



Univ., 2119 Abington Rd., CLEVELAND, OH 44106, USA 

 a Cell surface proteins-glycoproteins during skeletal myogenesis in culture. Callus spec. (Aves) 

 b Ontogeny of insulin binding and biological effects during skeletal myogenesis. Same species as a 

 c Mechanism of myoblast fusion and effects of heterokaryon formation. Same species as a 

 d Cardiac hypertrophy in embryos produced by hypothermia. Same species as a 

 e Localization of myosin genes on the chromosome by in situ hybridization. Same species as a 

 PUCCIARELLI, H. M.; D. Sci. Nat. - Lab. de Invest. Morfol., Cat. Ilia de Anat., Univ. Nac. de La 



Plata, 60 y 120, 1900 LA PLATA, Argentina 

 a Magnitude of cranial shape and size differences between sexes and between strains (Wistar and 



Holtzman); time at which the differences become significant (craniometry, 8-120 days post- 

 natal). Rattus norvegicus (Rodentia) 

 b Delay in craniofacial development due to feeding of carential diets from weaning to puberty 



(21, 40, 60 days), and influence of sex on the response to that nutritional stress (control diet 



"ad-libitum"; control diet in restricted amount; low protein diet "ad-libitum"). Same species as a 

 PUGIN, E.; Prof. - Inst, de Embriol., Univ. Austral de Chile, Casilla no. 567, VALDIVIA, Chile 

 a Process of morphophysiological adaptation in development. Chilean species (Anura) 

 b Ultrastructure of spermatozoa. Cliilean spp. (Anura) 

 c Heterospecific recombinations of ocular structures between Callus domesticus (Aves) and Rattus 



spec. (Rodentia) 



73 



