a Spontaneous and induced abortions: congenital anomalies, chromosomal aberrations and 



placental pathology (incl. ultrastructure). Homo sapiens (Primates) 

 b Transplacental effects of thyrocalcitonin, estrogens, corticosteroids and parathyroid hormone on 



fetal osteogenesis and calcium metabolism. Mus musculus, Rattus spec. (Rodentia) 

 c Scanning and transmission electron microscopy of the initial stages of calcification and 



ossification in normal fetuses and in congenital bone dysplasias. Same species as a 

 d The signitlcance of uhrastructural (TEM and SEM) studies in prenatal and postnatal detection of 



inherited metabolic disorders. Same species as a 

 ORSINI, Mrs. M. W. G.; Ph.D., Prof. - Dept. of Anat., Bardeen Med. Labs., Univ. of Wisconsin, 



MADISON, WI 53706, U.S.A. 

 a Fetal membranes, giant cells, and pregnancy changes in uterine vessels. Mesocricetus auratus 



(Rodentia) 

 b Factors controlUng implantation and loss of zona pellucida. Mesocricetus auratus, Rattus 



norvegicus, Mus musculus, Cavia porcellus (Rodentia), Mustela putorius, M. vison (Carnivora) 

 c Decidualization during pregnancy and pseudopregnancy. Same species as b 

 d Factors controUing hfe of corpora lutea. Same species as a 

 e Immunological aspects of decidualization. Same species as a 



ORTIZ, Miss E.; Dr. - Dept. of Biol., Univ. of Puerto Rico, RIO PIEDRAS, Puerto Rico 00931 

 OSHIMA, K.; Assoc. Prof. - Dept. of Physiol., Primate Res. Inst., Kyoto Univ., INUYAMA, Aichi, 



484 Japan 

 a Endocrine organs, particularly gonadal system during fetal development. Macaca fuscata 



(Primates) 

 b Effect of uterine and oviductal contraction on fertihzation and implantation. Same species as a 

 OVERMAN, D. O.; Ph.D., Assoc. Prof. - Dept. of Anat., Med. Ctr., West Virginia Univ., MORGAN- 

 TOWN, WV 26506, U.S.A. 

 a Chondrogenesis and brain-face relationships during genesis of cleft palate; protection against cleft 



palate. Mus musculus, Rattus norvegicus (Rodentia) 

 b Ascorbate protection against induced skeletal malformations. Gallus domesticus (Aves), Rattus 



norvegicus (Rodentia) 

 OVERTON, Mrs. J. H.; Ph.D., Prof. - Dept. of Biol., Div. of Biol. Sci., Univ. of Chicago, 1 101 E. 57th 



St., CHICAGO, IL 60637, U.S.A. 

 OZAKI, H.; Ph.D., Assoc. Prof. - Dept. of Zool., Michigan State Univ., EAST LANSING, MI 48824, 



U.S.A. 

 a Appearance of the acetylcholinesterase activity in post-gastrulation embryos; is it due to de novo 



synthesis or precursor activation? Strongylocentrotus purpuratus (Ecliinoidea) 

 b Are the micromeres of the 16-cell stage embryos already determined to differentiate acetyl- 

 cholinesterase? Dendraster excentricus (Echinoidea) 

 c Ontogeny of acetylchohne receptors. Same species as a 

 d Chromatin protein structure and biochemistry of sperm and eggs, and their transformation at 



fertiUzation. Strongylocentrotus purpuratus, Lytechinus pictus, Dendraster excentricus 



(Echinoidea) 

 OZATO, K.; Ph.D. - Dept. of Embryol., Carnegie Inst, of Wash., 115 W. University Parkway, 



BALTIMORE, MD 21210, U.S.A. 

 PACKARD, D. S., Jr.; Ph.D. - Dept. of Anat., Upstate Med. Ctr., State Univ. of New York, 766 Irving 



Ave., SYRACUSE, NY 13210, U.S.A. 

 a Determination and segmentation of somitic mesoderm. Gallus domesticus (Aves) 

 b Cellular site of action of nucleotide analog teratogens (bromodeoxyuridinc, iododeoxyuridine). 



Same species as a 

 PADYKULA, Miss H. A.; Ph.D., Prof. - Lab. of Cell Biol., Dept. of Biol. Sci., Wellesley Coll., 



WELLESLEY, MA 02181, U.S.A. 

 PAGANO, R. E.; Ph.D. - Dept. of Embryol., Carnegie Inst, of Wash., 115 W. University Parkway, 



BALTIMORE, MD 21210, U.S.A. 

 PAI, S.; Dr.rer.nat. - Lab. of Developm. Physiol., Inst, of Exp. Biol., Acad. Sinica, 320 Yo Yang Rd., 



SHANGHAI, People's Rep. of China 

 PALL, M. L.;Ph.D. - Program in Genet., Wash. State Univ., PULLMAN, WA 99163, U.S.A. 

 PALLIE, W.; Ph.D., Prof. - Dept. of Anat., Fac. of Health Sci., McMaster Univ., HAMILTON, Ont. 



L8S 4J9, Canada 

 a Development of temporal lobe asymmetry. Papio spec. Homo sapiens (Primates) 

 PANDEY, K. N.; M.Sc. - Dept. of Biochem., Fac. of Sci., Univ. of Allahabad, ALLAHABAD 211002, 



India 

 a Some enzymes (phospliatases, transaminases, trehalase and proteolytic) and metabolites 



(proteins, amino acids, nucleic acids and carbohydrates) in the fat body during larval-pupal 



development and spinning period. Antheraea myhtta (Lepidoptera) 

 PANDIT, R. v.; Pli.D. - Veterinary Coll., Seminary Hills, NAGPUR 440006, India 

 PANT (AIYAR), Mrs. R.; Ph.D. - Dept. of Biochem., Fac. of Sci., Allahabad Univ., ALLAHABAD 



21 1002, India 

 a Lipid metabolism. Silk worms (Lepidoptera) 

 b Free amino acids, transaminases, nucleoproteins, proteins, and proteolytic enzymes in the silk 



gland during development. Antlieraea mylitta (Lepidoptera) (witii S. D. SINGH) 

 c Effect of photoperiod during development on .several enzymes and metabolites. Same species as b 



(with many coworkers) 

 d Variation studies in several enzymes and metabolites during development from embryo through 



adult. Philosamia ricini, Attacus alata, Antlieraea mylitta (Lepidoptera) (with many coworkers) 

 e Development of silk glands during fifth instar. Same .species as d 



68 



