WELCKER, ON SARCINA. 163 



colour these granules blue, but it rendered the cilia visible, 

 the latter appearing to be able to resist dissolution for a longer 

 period than the cell-membrane. The granules had all a 

 border (s) around their nucleus (k). (See fig. 23, b.) The 

 author did not see the zoospores attach themselves to any- 

 foreign body ; they simply sank. Some of the zoospores of 

 C. aureum, which were kept moist under glass, increased by 

 cell-division. 



Agardh rightly placed Chroolepus amongst the algoe ; he 

 considered it to belong to the Confervoidese. Kutzing, in his 

 ' Phycologia generalis/ placed it with the Chantransire, and in 

 his ' Species Algarum/ with the Confervese. The author 

 considers the latter its proper place, in juxtaposition with 

 Cladophora. 



On Sarcina, and especially on its occurrence in the Urine of 

 Max. By Dr. Hermann Welcker. 



The following is an abstract of Dr. TVelcker's communi- 

 cation, which has appeared in Henle and Pfeuffer's ' Zeitsch. f. 

 Hat. Med.,' 3d ser., vol. v, p. 199 (1859). 



The most usual situation in which the sarcina occurs is, 

 as is well known, in matters ejected by vomiting from 

 the stomach, and it appears to be a common concomitant of 

 chronic vomiting. It appears, however, to be occasionally 

 present in the stomach, in cases where no symptoms of 

 gastric derangement had existed. 



Its occurrence in the urine has been frequently noticed ; 

 thrice by Heller, once by Dr. Mackay, twice by Dr. Johnson, 

 and twice also by Dr. Beale. 



Notwithstanding the hesitation with which Zenker admits 

 the probability of the occurrence of sarcina in the urinary 

 secretion, no doubt can be entertained, that in the cases about 

 to be detailed, the Sarcina originated in the urinary organs 

 themselves, and did not gain admission through any fistulous 

 passage, nor had become accidentally mixed with the urine. 

 But whether the sarcina were confined solely to the bladder, 

 or occurred also in the pelves of the kidneys and tubuli 

 uriniferi, must still be left undetermined. 



