389 Embryologia. 



88344 Tennent, Darid H. 13.9 : 39.5 



1909. Experiments in Echinoderm Hybridization. 8th Yearbook Carne- 

 gie Inst. Washington p. 136—138. 



45 Mathews, A. P. 13.9 : 39.5 Arbacia 



1909. The Influence of Some Amino-Acids on the Development of Echi- 

 noderms. Biol. Bull. Vol. 16 p. 44—46. 



46 Payne, Fernandus. 13.9 : 39.5 Arbacia 



1909. The Separated Blastomeres of Centrifuged Eggs of Arbacia. Science 

 N. S. Vol. 30 p. 934— 9*55. [Separation of visible materials without influ- 

 ence on production of plutei.] 



47 Borinur, Alice M. 13.9 : 51.3 Ascaris 



1909. On the EfEect of Different Temperatures on the Sitze of the Nu- 

 clei in the Embryo of Ascaris megalocephala with Remarks on the Size-Re- 

 lation of the Nuclei in univalens and bivalens. Arch. Entw.-Mech. Bd. 

 28 p. 118-124, 2 pis. 



48 BoTeri, Th., und M. J. Hogne. 13.9 : 51.3 Ascaris 



1909. Ueber die Moglichkeit, Ascaris-Ei&x zur Teilung in zwei gleich- 

 wertige Blastomeren zu veranlassen. Sit.-Ber. phys. nied. Ges. Wiirz- 

 burg 1909 p. 44—48, 5 figg. [Teilung unter der Einwirkung starker 

 Zentrifugalkraft. Erste Teilungsebene senkrecht auf der kiinstlichen Schich- 

 tung. Furchung.] 



49 Stevens, N. M. 18.9 : 51.3 Ascaris 



1909. The Effect of Ultra- Violet Light upon the Developing Eggs of 

 Ascaris megalocephala. Arch. Entw.-Mech. Bd. 27 p. 622—639, 3 pis. 



50 Kostanecki, K. 13.9 : 51.7 Aricia 



1909. Einleitung der kiinstlichen Parthenogenese bei Aricia. Bull, intern. 

 Acad. Sc. Cracovie 1909 Seni. 1 p. 238—253, 16 figg. 

 38851 Lilie, Frank R. 13.9 : 51.7 Chaetopterns 



1909. Polarity and Bilaterality of the Annelid Egg. Experiments with 

 Centrifugal Force. Biol. Bull. Vol. 16 p. 64—79, 9 figg. 



52 Whitney, David Day. 13.9 : 51.8 Hydatina 



1909. The Effect of a Centrifugal Force upon the Development and Sex 

 of Parthenogenetic Eggs of Hijdatina senta, Journ. exper. Zool. Vol. 6 

 p. 125-146, 1 pi., 5 figg. 



53 Schiller, I. 13.9 : 53.4 Cyclops 



1909. Ueber kiinstliche Erzeugung „primitiver" Kernteilungstormen bei 

 Cyclops. Arch. Entw.-Mech. Bd. 27 p. 560—609, 62 figg. 



54 Hegiier, R. W. 13.9 : 57.68 Chrysomelidae 



1909. The Effects of Centrifugal Force upon the Embryonic Development 

 of some Chrysomelid Beetles. 11th Rep. Michigan Acad. Sc. (Darwin 

 Centenary Public.) p. 123—125. — The Effects of Centrifugal Force upon 

 the Eggs of Some Chrysomelid Beetles. Journ. exper. Zool, Vol. 6 p. 

 507—552, 24 figg. 



55 Reifr, William. 13.9 : 57.89 Junonia 



1909. Contributions to Experimental Entomology. I. Junonia coenia Hub- 

 nek. (Contrib. entom. Lab. Bussey Inst. Harvard Univ. No. 1.) Journ. 

 exper. Zool. Vol. 6 p. 553—569. 



56 Chapman, T. A. 13.9 : 57.89 Pieris 



1909. Temperature experiments with pupae of Pieris brassicae. Trans, 

 entom. Soc. London 1909 p. LVII— LVIII, 1 pL 



57 Cooke, Elizabeth, and Leo Loeb. 13.9 : 7.55 Fnndulns 



1909. The comparative toxicity of sodium chloride and of staining so- 

 lutions upon the embryo of Fundulus. Proc. Soc. exper. Biol. Med. Vol. 

 6 p. 113-115. 



38858 Stockard, Charles R. 13.9 : 7.55 Fundulus 



1909. The Development of Artificialy Produced Cyclopean Fish — „The 

 Magnesium Embryo". Journ. exper. Zool. Vol. 6 p. 285—337, 63 tigg., 

 1 pi. — The Artificial Production and the Development of One-eyed Mon- 

 sters. (Amer, Soc. Zool.) Science N. S. Vol, 29 p. 429. 



25. IL 1911. 



