Proceedings of the Association of American Anatomists VII 



the original epithelium of the foregut, and that there is no downgrowth 

 of ectodermal epithelium from the oral cavity. This conclusion is in 

 accord with the observations of Neumann and of Shaffer of human 

 embryos. In the pig, however, the details of the process are somewhat 

 different, chiefly in the absence of ciliated cells at any time; nor were 

 any appearances noted which might be interpreted as anlagen of the 

 superficial tubular glands mentioned above. 



METHODS OP PREPARING THE SALIVARY GLANDS FOR STUDY AND 

 MUSEUM PURPOSES. By Charles F. Sylvester. Department of 

 Biology, Princeton University. 



MORPHOLOGY OF THE SALIVARY GLANDS. (From Material at Columbia 

 and Princeton Universities.) By Churchill Carmalt. Department of 

 Anatomy, Columbia University, Neiv York City. 



With lantern slides from photographs and drawings of specimens 

 in the Museum of Columbia University and Princeton, was presented 

 the salivary apparatus of Alligator mississippiensis, Chelonia mydas, 

 Ornithorhynchus anatinus, Echidna hystrix, Didelphys virginiana, 

 Petauroides volans, Tamandua bivittatta, Myrmecophaga jubata, Dasypus 

 sexcinctus, Lepus sylvestris, Sciurus carolinensis, Manatus americanus, 

 Equus caballus, Bos taurus, Canis familiaris, Arctocephalus, Scalops 

 aquaticus. Pteropus, Cynocephalus, Macacus inuus and human parotid, 

 submaxillar}^, sublingual, labial, pharyngeal, anterior and posterior lin- 

 gual, palatal and uvular glands. Cross sections, models and corrosions 

 of these same human glands illustrate relations. 



In conclusion there is morphologic constancy and identity of salivary 

 apparatus throughout the mammalian series. 



There is a group of glands along the alveo-buccal borders with com- 

 pound acinous elements, the parotid at its posterior or caudal union. 



There is a group of glands along the alveo-lingual groove, the anterior 

 end of which becomes compound with one, two or three ducts in different 

 orders, represented as variations in human subjects. 



The glands correspond in size "ndth the digestive function, herbivorous 

 animals having large, carnivorous small glands. This only applies in 

 a wider sense, for carnivores like the bear with herbovore habits grow 

 larger glands. 



The submaxillary gland is dependent for its size upon mobility of the 

 tongue. 



Salivary glands increase in size with age and with j)regnancy. 



TOPOGRAPHY OF THE PANCREAS IN THE HUMAN FCETUS. By C. M. 

 Jacksox. Department of Anatomy, University of Missouri. 



