1916] KURAL ENGINEERING. 489 



cups into suitable containers and sterilized in a container which is surrounded 

 by a jacket of water. The temperature of the water in the outer jacket at the 

 beginning of the heating should not exceed 63° C. The serum in tlie inner 

 container is slowly stirred during the heating process, care being taken to see 

 that the temperature of the serum does not fall below 60° nor rise materially 

 above it. Continuous heating for 30 minutes at 60° is required. After the 

 sterilization the senmi is rapidly cooled, and one part of a 5 per cent solution 

 vi phenol added to nine parts of the serum. After the phenol has been added a 

 slight precipitate may at times form in the serum, and it is therefore desirable 

 to allow several days to elapse between the addition of the phenol and the final 

 filtration through infusorial earth. 



By the new procedure yields of from 70 to 74 per cent of the perfectly steril- 

 ized serum were obtained. 



" There seems to be no reason why the process should not be entirely satis- 

 factory for use in the practical production of antihog-cholera serum. There 

 appears to be little or no loss in antibodies ; the serum secured is generally 

 clear; and it may be removed from the agglutinated cells easily by pouring 

 from the cups. The method also would seem to tend toward a certain concen- 

 tration of the antibodies of the blood, and it is also to be recommended on 

 account of the fact that it results in a large yield of serum. 



" The fact that this serum may be heated for half an hour at 60° without 

 noticeable impairment of its potency is of much practical importance because 

 there is thus afforded a ready means for safeguarding it against infection with 

 the virus of the foot-and-mouth disease." 



Ascariasis in the horse and swine, H, Thum (Ztschr. Tiermed., 18 (1915), 

 No. 11-12, pp. 503-528; abs. in Cornell Vet., 5 (1916), No. 4, pp. 205-209).— A 

 report of observations relating to Ascaris megalocephal<i in the horse and A. 

 lumbricoides in swine. 



Contribution to the study of parasitic affections of the horse. — A clinical 

 study of equine strong-ylidosis, G. Leneveu (Rev. O&n. MM. Vet., 24 {1915), 

 No. 288, pp. 593-612; abs. in Jour. Amer. Vet. Med. Assoc., 49 (1916), Nos. 1, 

 pp. 102-106; 2, pp. 161-163). — This is a compilation of information relating to 

 the life history of the nematodes of the genera Strongylus and Cylicostomus 

 that are parasitic in the horse, and to the lesions, symptoms, etc., of which 

 they are the source. These forms occur endemically in various parts of France 

 and especially in Normandy. 



The poisonous effects of the rose chafer upon chickens, G. H. Lamson, Jk. 

 (Science, n. sen, 43 (1916), No. 1100, pp. 138, i39).— Substantially noted, from 

 another source (E. S. R., 34, p. 655). 



RURAL ENGIIJEERING. 



flngineering g-eology, H. RiES and T. L. Watson (New Tork: John Wiley & 

 Sons, 1915, 2. ed., enl., pp. XXVII+122, pis. 104, fiffs. 249).— This is a second 

 and enlarged edition of this book (E. S. R., 32, p. 784), to which a chapter 

 on historical geologj' has been added. 



Water supply, sewerage, and drainage department [Western Australia], 

 third annual report, year 1914-15 (West. Atist. Water Supply, Setver., and 

 Drain. Dept. Ann. Rpt., 3 (1914-15), pp. VIII+lll, pis. .35).— The activities 

 and expenditures of the department for the year ended June 30, 1915, are 

 reported, including data on irrigation, drainage, and rural water supplies and 

 related hydraulic experimental data. 



Water resources of the State of Oregon, J. H. Lewis (Off. State Engin. 

 Oreg. Bui. 4 (1915), pp. 353, figs. 18, pi. i).— This report, prepared in coopera- 



