Be 8s 
Hartman, Carl Gottfried, Studies in the Development of the Opossum Di- 
delphys virginiana L. 1. 2; 3. 4. (S. Kap. 13a.) 
Heuser, Chester H., The early Establishment of the intestinal Nutrition in the 
Opossum — The digestive System just before and soon after Birth. (S. Kap. 9b.) 
Hurst, E. W., Note on the lacrymal Gland of the Hedgehog. (S. Kap. 11b.) 
Kajava, Yrjö, Die kurzen Muskeln und die langen Beugemuskeln der Säuge- 
tierhand. IV. Chiroptera. Anhang: Ein Vergleich der Handmuskulatur der 
Chiropteren mit der der Insektivoren und des Galeopithecus. (S. Kap. 6 b.) 
Laurens, Henry, The Reactionsofthe Melanophores of Amblystoma Larvae — 
the supposed Influence of the Pineal Organ. (S. Kap. 5.) 
Michelsson, Gustav, Die Hautmuskulatur des Igels (Erinaceus europaeus). 
(S. Kap. 6b.) 
Miyagawa, Y., The exact Distribution of the Gastrie Glands in Man and in 
certain Animals. (S. Kap. 9b.) 
Moodie, Roy L., Microscopic Examination of a fossil Fish Brain. (S. Kap. 11 a.) 
Myers, J. A., Studies on the Mammary Gland. (8. Kap. 8.) 
Patterson, J. T., and Hartman, C. G., A polyembryonie Blastocyst in the 
Opossum. (8. Kap. 13a.) 
Reese, A. M., The integumental Glands. (S. Kap. 8.) 
Rice, Edward L., The Deyelopment of the Skull in the Skink, Eumeces quin- 
quelineatus L. 1. The Chondrocranium. (S. Kap. 6a.) 
Sansom, G. S., Parthenogenesis in the Water Vole, Microtus amphibius. (S. 
Kap. 10 b.) 
Spurgeon, Charles H.. and Brooks, Ralph J., The Implantation and early, 
Segmentation of the Ovum of Didelphis virginiana. (S. Kap. 13a.) 
Stockard, Charles, R., and Papanicolaou, George N., The Existence of 
a typical Oestrous Cycle in the Guinea-Pig — with a Study of its histological and 
physiological Changes. (S. Kap. 13 a.) 
Strong, R. M., The Order, Time and Rate of the Vertebrate Skeleton. (S. Kap. 6a.) 
Stunkard, H. W., Primary Neuromeres and Vertebrate Head Segmentation. 
(Si Kap. 3'a-) 
Thiel, Geo A., and Hal Downey, The Development of the Mammalian Spleen, 
with special Reference to its hematopoietic Activity. (S. Kap. 7.) 
Trautmann, Alfred, Der Zungenrückenknorpel von Equus caballus. (8. 
Kap. 9b.) 
Virchow, Hans, Die Milchwangenzähne des Menschen und anderer Primaten. 
(S. Kap. 9b.) 
Abgeschlossen am 20. Mai 1921. 
