RURAL ECONOMICS. 689 



some oases. During the investigation examinations were made of the feces and 

 alimentary canal of animals other than rnuiinants. including the horse, pig, 

 rabbit, dog, etc., a brief report of the findiiigs being here included. 



In regard to the prevention and remetlial measures, the author concludes that 

 " the animals should have plenty of wholesome food and especially during late 

 summer and fall when pastures become scant. The animals should have access 

 to plenty of fresh water, preferably running water, and no muddy or swampy 

 conditions should be tolerated about watering places. During a moist season 

 when the disease is worst the pasture should be changed, always keeping the 

 animals on upland. . . . Where the raising of late summer or fall calves is 

 practicable [intelligent rotation of land] will greatly eliminate this disease." 



Some helminthiases observed in Tunis, Weinberg and Romanovitch {Arch. 

 Inst, rustcur Tunis, IDOi), Feb.; ahs. in Rca. Med. Vet., 86 {1909), No. 23, pp. 

 SJfl, 8Ji2). — Lesions in cattle due to Amphistomum conicum, Dreschsler's nema- 

 tode, and I'nitnstfinia (Icnticula are considered. 



Mammalian leucocytozoa, S. R. Christophers {Jour. Trop, Vet. 8ci., 4 

 {1909), No. 2, pp. 232-2 J-'i). — An account taken from the report of the King In- 

 stitute of Preventive Medicine. 



Some clinical tests of the action of antistreptococcic serum, N. Mori {Clin. 

 Vet. [Milan], ,S(:c. Prut., 32 {1909), No. 22, pp. 337-3'il; abs. in Rev. G6n. MM. 

 Vet., I'l (1909), No. 168, pp. 802, 803).— From the results obtained during an 

 epidemic of strangles in which an antistreptococcic serum prepared at the 

 military bacteriological laboratory at Rome was used, the author concludes that 

 it has some cunitive as well as high in'cvcntiv*' properties. 



Biological albumin differentiation procedure, with special reference to 

 the forensic examination of blood and meat, and the obtaining of precipi- 

 tizing sera, P. Uhlenhuth and O. Weiuanz {Pruktischc Anleitun<j zur Aus- 

 f nil rung des biologischen Eiweit^sdifferenzierungsvcrfahrens mit besonderer 

 Beriicksichtigung dcr forensischen Blut- und Fleiscliuntersuchung, sowie der 

 Geioinnung prdzipitierender Sera. Jena, 1909, pp. 21/6, figs. 38; Handb. Tech. u. 

 Mcthodik Immunitdtsforsch., 2 {1909), pp. 721-833, figs. 29; rev. in Vet. Jour., 

 65 {1909), No. JflJ,, pp. 640, 6'^i).— This work deals exhaustively with the effects 

 occasioned by antisera on different kinds of blood. An extensive bibliography 

 is appended. 



Medical pocket dictionary in eight languages, edited by .1. Meyer {Lexicon 

 Medicuni. Berlin and Vienna, 1909, pp. XXVllI-\-188). — This dictionary in- 

 cludes about 5,500 words in each of the following languages : German, English, 

 French, Italian, Japanese, Russian, Spanish, and Hungarian. 



RURAL ECONOMICS. 



A critical examination of and contribution to the problem of intensive cul- 

 ture, T. Brinkmann {FuhVing's Landw. Ztg.. 58 {1909). Nos. 23. pp. 833-850, 

 dgni. 1; 24, pp. 873-890, dgnis. 5). — This article critically examines the relation 

 that exists between the degree of culture given to land and the productiveness 

 of land, labor, and capital. The author summarizes his conclusions as 

 follows : 



(1) An inductive-statistical examination of the returns as a result of chang- 

 ing degrees of intensive culture in agriculture must take into consideration both 

 gross returns and total expense. A comparison of the gross income with 

 definite expense items means nothing as to the real relation of expense and 

 yield. 



(2) Practically, that is on individual farms, the operation of the law of 

 diminishing returns can not be determined, because this law according to its 



