Proceedings of the Association of American Anatomists XV 



continued along the mesial border of the anterior half of the left lung 

 where it ends. A second remnant of the dorsal mesogastrium is found 

 in the ligamontum gastro-lienale connecting the stomach and spleen. 

 The bursa hepato-enterica is therefore much less complete in Amblystoma 

 than in either of the two preceding forms. 



In Chrysemvs. the bursa hepato-enterica, like that of mammals, is 

 connected with the general body cavity in the earlier stages of develop- 

 ment; but as development goes on, the cavity becomes much enlarged, 

 takes an irregular h shape and is finally cut off from all communication 

 with the general body cavity. The spleen is situated in its own pocket 

 which may or may not communicate with the bursa hepato-enterica. 



ON THE SHAPE OP THE URINIFEROUS TUBULES OP MAMMALS. By 

 G. Cakl Huber. Department of Histology and Embryology, University 

 of Michigan. 



American Journal of Anatomy, Vol. IV. {Supplementary mimher.) 



CYTOLOGICAL CHANGES IN THE KIDNEY DUE TO DISTILLED WATER 

 AND VARYING STRENGTHS OP SALT SOLUTION. By Perdinand 



ScHMiTTER. Department of Anatoviy, University of Wisconsin. 



Fresh kidney tissue macerated in distilled water shows large vesicles 

 within the lumen such as are usually seen in chronic interstitial neph- 

 ritis. Biitschli's schaumstruktur appears in the epithelial cytoplasm. 

 Imbrication of epithelium occurs in places. Bowman's capsule becomes 

 greatly distended. Maceration in hypertonic salt solution causes ap- 

 pearance of brush border in convoluted tubules. Strong solutions also 

 cause vacuoles and canals to appear within the cytoplasm. 



RECENT ADDITIONS TO THE HARVARD EMBRYOLOGICAL COLLEC- 

 TION. By Charles S. Mixot. Harvard Medical School. 



DEMONSTRATIONS. 



1. Dr. Charles R. Bardeen: Models of a. The development of the thoracic 



vertebrae in the human embryo; b, The development of the skeleton of 

 the leg in the human embryo. 



2. Dr. R. B. Bean: Preparations showing a racial peculiarity in the brain 



of the Negro. 



3. Dr. J. L. Bremer: Models of a 4.0 mm. human embryo from the Harvard 



Embryological Collection. 



4. Dr. Lydia M. DeWitt: Models of areas of Langerhans of certain mammals. 



5. Professor Simon H. Gage: Preparations showing glycogen in animal 



tissues. 



6. Susanna Phelps Gage: Plates illustrating the anatomy of a three-weeks 



human embryo, with especial reference to the forebrain. 



