RURAL ENGINEERING. 881 



A further contribution on the biology of Hypoderma lineatum. and H. 

 bovis, S. llADWKN (rarasitoloijif, 7 ili)ir,). No. J,, pp. 331-338, pis. £).— Substan- 

 tially noted from anotluT source (K. S. 11., 33, p. 775). 



Trichinosis. — Report of a case with the trichina larvre in the spinal fluid, 

 L. BuK'H (,/oiir. Aincr. AUd. Aksoc, G5 (1!)/5), Nu. 25, pp. 21. 'lO, 2IJfl, fig. 1) . — 

 This is a report of a case in which trichina larvre were found in the cerebro- 

 spinal iluid. " Meningeal irritation undoubtedly exists, as is shown by the 

 positive Nonne and Noguchi tests. Severe infections show low eosinophil count 

 during the acute .stage, which increases with convalescence." 



Salvarsan treatment of infectious catarrh of the upper respiratory tract 

 of the horse, IJautiiel (Ztschr. Vctcrinurh-., 27 (10J5), No. 3, pp. 65-68; abs. in 

 Vet. L'cc, 28 (JiH5), No. 1J,23, pp. J67, 168).— T\w author reports that successful 

 resuUs have followed the administration of 4.5 gm. of neosalvarsan dissolved 

 In 100 cc. of distilled water and injected intravenously, tlie injections varying 

 from one to five days after the first appearance of symptoms of the disease. 

 Fifteen horses were thus treated and four slightly Infected cases left for con- 

 trols. The symptoms of the disease were very characteristic, so that it was 

 possible to exclude strangles and equine infectious pneumonia from the diag- 

 nosLs. The fever diminislied in from 12 to 90 hours after injection and an 

 iniiirovenient of the general condition appeared. The controls continued to 

 have Irregularities of tenii'erature, pulse, and respiration for some time. 



I, Some further studies of chick mortality, B. F. Kaupp {North Carolina 

 Sta. Bui. 235 (J!tI6), pp. 3-11, 15). — TIi('S(> jiageS discuss the causes of chick 

 mortality, and report experiinents iindertaken to determine the effect of feeding 

 various kinds of sour milk and* buttermilk in reducing this mortality. All of 

 the lots were raised on ground infected by Bacterium, pullorum,. 



In addition to a grain mixture four lots of chicks received the following 

 feeds: Lot 1, sour milk (clabber); lot 2, artificial buttermilk made by 

 BaciUna hulf/aricus ; lot 3, buttermilk made from IL acidi lactiH; and lot 4, 

 a control lot, no milk. Diarrhea attacked tiie fiocks, resulting at the end of 

 the 8-week period in a 16 per cent loss in lot 1, 10 per cent in lot 2, and 12 

 per cent in lot 3. In lot 4 diarrhea claimed a toll of 24 per cent during the 

 first four weeks and left the remaind(^r of the flock in such a wrecked condition, 

 constitutionally, that by the end of eight weeks 36 per cent had died. 



In individual records of 8 White Leghorns 4 were infected with diarrhea and, 

 although they survived at the end of eight weeks, they averaged oidy 0..56 lb. 

 in weight, while those that were not attacked averaged 0.74 lb. Eleven birds 

 were attacked by diarrhea and at the end of eight weeks averaged only 0.28 lb. 

 each in weight, while 8 birds which were not affected by diarrhea averaged 

 0.47 lb. each in weight. 



It is concluded that normal, artificial buttermilk, and sour milk are beneficial 

 in baby chick feeding, serving to ward off severe attacks of diarrhea and 

 resulting in greater gains in the chicks. The feeding of sour milk is recom- 

 mended to begin as soon as the chick is taken from tlie incubator or nest. 



The diseases of poultry, J. EiiRHAKnT (J)ie Krankhcltcn den Ilausf/cfliigcl.^. 

 Aarau: lUnll 11'//:, liUJf, 3. rd., pp. mi +60). —A third edition of this small 

 handbook. 



RURAL ENGINEERING. 



Flow through weir notches with thin edges and full contractions, V. M. 

 Conk {U. S. Dept. Agr., Jour. Agr. Research, 5 {1916), No. 23, pp. 1051-1113, pi. 

 1, figs. 21f). — Laboratory equipment and methods used are described and ex- 

 periments conducted under a cooperative agreement between the Oflice of Ex- 

 periment Stations of this Department and the Colorado Experiment Station on 



