351 



toward the lumen. Thus it is difficult to say from their appearance 

 alone whether the dark lines are the individual constituents of the 

 brush-border or whether the light spaces between represent the units 

 and the dark striations represent their tangential surfaces. From 

 analogy of the cells near the medulla it seems most probable that the 

 dark striations are the units and that their connection at the end 

 protruding into the lumen is due to fluid pushing between the striations 

 and carrying a tonoplastic membrane before it. 



Vacuoles and Canals. 



In the more concentrated solutions many vacuoles are formed in 

 the cytoplasm, sometimes making a pseudo-alveolar structure. These 

 vacuoles are connected with canals in various directions. Two vacuoles 

 may be connected by a short canal presenting a dumb-bell appearance. 

 The canals anastomose irregularly and in places open into the lumen. 

 The cytoplasm between these vacuoles and canals has a very irregular 

 appearance. 



While certain coarse rods become more prominent in macerated 

 specimens, the fine granular rods, i. e. rods of Heidenhain seen in 

 the normal kidney epithelium disappear with maceration. 



Sum mary. 

 Vesicles, Schaumstruktur, imbrication, brush-borders, vacuoles and 

 canals may be produced artificially and at will by maceration in 

 distilled water and salt solution of varying strengths. 



Anatomisclie Gesellscliaft. 



Erster yereiiiigter Internationaler Anatomenkongreß, 



gleichzeitig 19. Versammlung der Anatomischen Gesellschaft. 



Genf, 6.— 10. August 1905. 



Gemäß dem auf der letzten Versammlung in Jena gefaßten Be- 

 schluß wird die Anatomische Gesellschaft an dem vereinigten Inter- 

 nationalen Kongreß in Genf (6.— 10. August) teilnehmen. Die ver- 

 einigte Gesellschaft besteht aus der Anatomischen Gesellschaft, der 

 Association des Anatomistes, der Anatomical Society of Great Britain 

 and Ireland, der Society of American Anatomists und der ünione 

 Zoologica Italiana. Ein Schweizer Comite hat sich für die Organisa- 

 tion und den Empfang gebildet. Dasselbe besteht aus den Professoren 

 Mayor (Dekan), I^ternod, Laskowski, Cristiani, H. Prevost, d'Es- 

 piNE, Batelli und Du Bors von der medizinischen Fakultät, — den 

 Professoren Chodat (Dekan), E. Yung, Duparc, Bedot und de 



