1902] MICROSCOPICAL JOURNAL 13 
(Nebenzellen), which are not, however, very regularly 
placed. 4. The arrangement of the mesophyll possibly 
stands in mechanical relation with the stomata. 5. The 
perennial shrubby character of the plant and its peculiar 
leaf anatomy separate it definitely from the genus Solidago.” 
(Bull. Torrey Bot. Cl. 28: 445-450. Cont. Dept. Bot. Col- 
umbia Univ. 184.) 
Mink oF WILMINGTON AND PiattT’s CHLORIDES.—The 
Bacteriological and Pathological Laboratory of the Dela- 
ware State Board of Health publishes bulletins that contain 
in addition to valuable resumes of European and American 
work, matters that the Board of Health through Prof. Ches- 
ter and Albert Robin have investigated. No. 9 contains an 
interesting account of analysis of milk sold in Wilmington. 
From the results of investigations obtained, the authors con- 
clude that Platt’s Chlorides fail to kill typhoid bacilli by 
direct contact in 20 minutes. 
TRANSMISSION OF TUBERCULOSIS.—The American Medi- 
cine for October 26, Nov. 2, 1901 publishes a summary of 
investigation on the subject of the Transmission of Tuber- 
culosis through Meat and Milk by Dr. John J. Repp of 
Ames. The writer concludes that meat is highly unfit for 
food when the animal is highly tuberculous but is safe for 
food when the animal is only slightly tuberculous, especially 
so if the meat is well cooked and the tubercular tissues are 
eliminated. In regard to milk, the milk of a cow with tub- 
erculous udder is always dangerous for food unless it is well 
sterilized. ‘The milk of tuberculous cows with healthy ud- 
ders is sometimes dangerous for food unless well sterilized. 
Tuberculous cows may be kept for breeding purposes pro- 
vided that they are isolated, and they may be slaughtered 
for food under conditions reached in this paper. He regards 
the bacilli of cattle pathogenic for man. 
BACTERIA OF SEMI-DESERT REGION.—Prof. John Wein- 
zirl publishes a summary of his investigations of the bac- 
