\ 1. 1 l-.KIN AIIV MEDICINE. 



change in its composition. Experimenta have therefore been made during a period 

 of 3 years with formaldehyde to preserve must. 



In this work the apples are first washed and then put into a solution of formal- 

 dehyde in tin- proportion of s to 1,000 and lefl there for from 5 to Hi minutes. The} 

 arc then washed in clean water, ami crushed and pressed. Tin- crushing an. I pr< bs- 

 ing apparatus is also Bterilized with formaldehyde used in t lit- proportion of 4 pan- 

 to 1, niiii. it ha- been found that the must of applet thus treated does nol ferment. 

 Such must was sent from Rennes to Buenos Ayres and back again without any 

 fermentation whatever taking place. 



Tin' niii.-t thus obtained contains only small traces of formaldehyde, ami this 

 disappears at tin- cm I of several days. The taste ami the composition of the mu-t are 

 identical with that of must prepared from apples which have been subjected to m, 

 treatment whatever. When the musts are seeded w ith j east they ferment regularly, 

 producing normal cider of high quality containing no trace- of formaldehyde. 



Directions for the manufacture of olive oil in Algeria, 1'. Dumas I Bui. Agr. 

 Algfrii et Tunisie, n {1905), No. IS, i>j>. 292-802). — This is an account of methods 

 employed in olive-oil making in Algeria. 



Cotton-seed products, L. L. Lam born (New )'",•/.•.• l>. Van Nostrand Co., /.'">;, 

 ////. XIII 240, figs. 79, map 1).—I\ is stated that "the purpose of thi- hook is to 

 supply a demand for a treatise on the subject of cotton seed which should deal not 



only with the extraction of the <>il from the seed, hut with the utilization of the 

 products of the seed as well. With this purpose in view, this hook is submitted to 

 a clientele which includes the technical student, the practical man in the fat and oil 

 industries, the cotton-seed oil miller and, last hut in no wise least, the consumer of 

 the products of cotton seed." 



Different chapters deal with the cotton plant, the cotton-seed industry, summary 

 of procedure in utilizing of cotton seed, cotton seed, cotton-seed products, manufac- 

 ture of oleomargarine and lard compound, manufacture of soap ami soap powder, 



COtton-seed meal and COtton-seed hulls for cattle food and fertilizer, and rules for the 



government of transactions in cotton-seed products. 



Reports of the Twelfth Census and publications of this Department were drawn 



on in the preparation of the hook. 



VETERINARY MEDICINE. 



The evolution of immunity, G. ft. Leighton (Jour. Compar. Path, and Ther., 

 1: \ 1904), No. '/. /'/>. 287-295). — In this article particular attention is given to a dis- 

 cussion of immunity as a problem of heredity. 



Several examples are cited of animal and human diseases in which a resistance to 

 the disease is gradually being developed among races which are Bubject to the infec- 

 tion. The author believes that inmate immunity and the power of acquiring immu- 

 nity to a disease are evolved in the same manner as other character-, and that the 

 whole process is due to natural selection. The prevalence of disease is considered 

 one of the most important factors by which the process of natural selection is 

 influenced. 



The fundamental laws of immunity, A. W'oi.ri {Cenibl. Bakt. [etc'], 1. .\l>t., 

 Orig., 81 1904), Nos. 8, />/>. 890 897; i. pp. 566-576; 5, />/'. 684-706). — This is a gen- 

 eral article in which the author discusses the nature of toxin-, endotoxins, bacterio- 

 lysis, agglutination, hemolysin, precipitins, cytotoxins, the relationship of leucocytes 

 to immunity, and other subjects related to this problem. 



The intrauterine and extrauterine transmission of antitoxins from 

 mother to offspring-, 1\ II. RdMEfi 1 Beitr. Expt. Ther., 1905, No. 9, pp. 18-41, /« 

 These experiments were carried out on guinea pigs, rabbits, sheep, cattle, and human 

 beings. 



