274 



THE ALUMNI JOURNAL, 



with this color-screen, and only exposed to 

 light which has passed through the latter; an 

 extra long exposure is necessary owing to the 

 partial capacity of the color-screen. The plate 

 is then developed in the ordinary way. The 

 color-screen is now again placed against the 

 negative, and then the two are held up to the 

 light, if the color screen is placed just as it was 

 when the exposure took place, an accurately 

 colored reproduction of the original scene ap- 

 pears. The process is so simple and inexpen- 

 sive that it will probably come rapidly into 

 general use. — The Popular Science Monthly. 



A useful bulletin, on the pasteurization of 

 milk and cream for direct consumption, has 

 been issued from the Agricultural Department 

 Station of the University of Wisconsin. It is 

 drawn up by Dr. H. L. Russell, the bacteriolo- 

 gist attached to the station, and contains much 

 interesting matter. There can be no doubt 

 whatever that the pasteurization of milk is a 

 most important hygienic measure, destroying as 

 it does an average of about 99.7 per cent, of the 

 microbes present in milk, amongst which are the 

 diphtheria and typhoid microbes, as well as those 

 organisms associated with gastric and intestinal 

 disturbances so common in young infants during 

 the summer. It is claimed that the introduction 

 o f pasteurized milk among the poor people of 

 New York, through the philanthropic efforts of 

 Mr. Nathan Straus, has done much to reduce 

 the infant mortality in that city during the hot 

 summer months. The practical side of the 

 question has not been lost sight of by Dr. Rus- 

 sell, and the results of his experiments on the 

 efficient production and distribution of pasteur- 

 ized milk on a commercial scale are carefully 

 brought together. The subject is one of great 

 importance, both from a hygienic as well as 

 commercial point of view, and we may surely 

 hope that before long our dairy authorities will 

 take the matter up, and that we shall follow, 

 though tardily, the example already set us by 

 our neighbors in France and Germany, where 

 pasteurized milk may be purchased across the 

 counter. — Nature. 



Among the deaths of eminent scientific men 

 abroad, we notice the name of Dr. F. Hoppe- 

 Seyler, professor of physiological chemistry, in 

 Strassburg University, and also that of Dr. S. 

 Moos, professor of otology in Heidelberg Uni- 

 versity . 



The Royal Horticutural Society's Journal for 

 August has in it several important papers. 



There is a report of the Primula Conference, 

 held a short time back with the idea of increas- 

 ing and improving the culture of the various 

 species of Primula by procuring new plants 

 from remote regions; by practicing the most 

 successful methods of culture; and by produc- 

 ing hybrids. A paper on the botanical work 

 done on the genus Primula since the last con- 

 ference in 1886, was contributed by Mr. J. G. 

 Baker, F. R. S., and this is printed with one on 

 the culture and classification of Primulas, by Mr, 

 H. Selfe Leonard, and another on the Auricula, 

 by Mr. J. Douglass. Among the other papers 

 in the Journal, we notice a long and very valu- 

 able description of the plants and gardens of 

 the Canary Isles, by Dr. Morris, C. M. G., and 

 a paper on the culture of roses under glass, by 

 Mr. F. Cant.— Ibid. 



Science states that the Board of Scientific 

 Directors of the New York Botanic Garden has 

 recently resolved to authorize a topographical 

 survey of the 250 acres of land in Bronx Park, 

 which have been set aside for the uses of the 

 garden. All the trees in the park are to be 

 labeled, and new variety of seeds desirable for 

 cultivation are to be secured. — Ibid. 



The Royal Academy of Medical, Physical and 

 Natural Sciences Havana, at a meeting held 

 on April 28, decided to offer amongst other 

 prizes, mostly for medical essays, one — the 

 Cafiongo prize, value $250 in gold, for the best 

 essay on "The Pharmacological Study of the 

 Fluid Extracts." The competition, which is 

 open to any person whether belonging to the 

 medical profession or not, will be closed on 

 March 19, 1896, by which date all papers must 

 be sent in, written in French or Spanish, and 

 sealed, with a motto on the internal envelope, 

 and in another envelope bearing the same mot- 

 to, the author's name and address. The adjudi- 

 cation will take place on May 19, 1896, when 

 the prizes will be distributed to the successful 

 competitors. Further particulars may be ob- 

 tained by writing to the Secretary, Dr. Vincente 

 de la Guardia, Havana. — Ibid. 



Bacteriology has taken up the telephone as a 

 disseminator of disease, and may make neces- 

 sary the adoption of some device by which the 

 danger of infection from the mouth piece, which 

 many people allow to touch the lips, can be 

 avoided. The medical journals of Paris are 

 agitating the matter. — The Popular Science 

 Monthly. 



