IR 
Macewen, William, The Growth and Shedding of the Antler of the Deer: the 
histological Phenomena and their Relation to the Growth of Bone. (S. Kap. 6a.) 
Marcus, H., Uber die Zahl und die Verschiebung von Zähnen besonders bei 
Manatus. (8. Kap. 9b.) 
Martin, Bertha E., Tooth Development in Dasypus novemeinctus. (8. Kap. 9b.) 
Matthes, Ernst, Zur Kenntnis des Knorpelschädels von Halicore dugong. 
(S. Kap. 6a.) 
McCotter, Rollo E., The Vomero-nasal Apparatus in Chrysemys punctata and 
Rana catesbiana. (8. Kap. 6a.) 
Moodie, Roy L., On the Sinus paranasales of two early tertiary Mammals. 
(S. Kap. 6a.) 
Moodie, Roy L., The Structure and Growth of the Plesiosaurian Propodial, 
(S. Kap. 6a.) 
Norris, H. W., and Hughes, Sally P., The Cranial and anterior Spinal Nerves 
of the Caecilian Amphibians. (S. Kap. 11a.) 
Primrose, W. B., The Evolution of the Vertebrate Endoskeleton. (S. Kap. 4.) 
Rasmussen, Andrew T., Seasonal Changes in the Interstitial Cells of the Testis 
in the Woodchuck (Marmota Monax). (S. Kap. 10b.) 
Reese, Albert M., The Blood of Alligator mississippiensis. (S. Kap. 5.) 
Shufeldt, R.-W., Notes on the Osteology of the Young of the Hoatzin (Opistho- — 
comus cristatus) and other Points on its Morphology. (S. Kap. 6a.) 
Thing, Alice, The Formation and Structure of the Zona pellucida in the Ovarian 
Eggs of Turtles. (S. Kap. 10b.) 
Vanneman, Aimee S., The early History of the Germ Cells in the Armadillo, 
Tatusia novemeineta. (S. Kap. 10b.) 
Warren, John, The Development of the Paraphysis and Pineal Region in 
Mammalia. (S. Kap. 11a.) 
Wells, Grace A.. The Skull of Acanthias vulgaris. (8. Kap. 6a.) 
Abgeschlossen am 30. Oktober 1921. 
