1192 EXPKHIMKNT .STA'IION UKCOlM). 



bri'aU ri'iKU'totl fowls, .iiccsi-. and iii^'cuiis wcil' in clusi- contact with diseased 

 turkeys but were not aflectetl. 



Notes on ostrich parasites, W. Kobkrtson (Af/i: Jour. C(ii)e (Jood Jiopc, ,}.} 

 (IHOS), \ti. .>, i>i). 'tS,i-')S8, /i(/.s. 6). — The ostrich tapeworm {Twnia struthioniN) 

 and the wireworm (Stmiif/i/lus (ItnKjhtsU) are here described. A species closely 

 related to the .guinea worm of man is also mentioned. 



The cestodes of birds, O. P"'uhrmann (ZooI. Jalirh.. lOOS,, 8tip. 10, No. J, pp. 

 232). — A monograph based uiion museum and private European collections. 

 From 544 species of birds 495 cestode parasites are recorded. These parasites 

 are shown to be of fireat importance in zooseographic investigations. In the 

 faunistic section a list is given of the hosts, with their distribution and cestode 

 parasites. 



An alphabetical index is given of the families, genera, and species. The last 

 20 pages are devoted to a bibliography. 



Note on the behavior of Spirochsetae in Acanthia lectularla, G. II. F. Nut- 

 tall {Parasitology, 1 {1908), No. 2, pp. l.'iS-lol). — The experiments reported 

 " show that ISpirochwta dtittoni retains its virulence after a sojourn of 5 or more 

 days in the intestine of Acanthia Irctiilaria when tlie insect is maintained at a 

 ten>iierature of 12° C. Living (motile) si)irochetes were observed in the gut- 

 contents of the bugs up to 6 days at 12°, but only up to 6 hours at 20 to 24°. 

 The observations made at various temperatures appear to indicate that the 

 spirochetes are simply digested by tlie bug and that their more rapid disap- 

 pearance from the insect's gut at higher temperatures is dependent upon the 

 insect's digesting its food more rapidly when kept warm. . . . Although the bug 

 is not the true host of S. dtittoni it is conceivable that it may serve as a me- 

 chanical carrier of the parasite. . . . 



" The foregoing experiments, whilst not sufficiently numerous to permit of 

 any final conclusions, appear to indicate that .S'. obermeirri may die out more 

 rapidly than 8. duttoni in the gut of the bug. It is possible that the bugs di- 

 gested their food more rapidly owing to their being more hungry than the lot 

 used for experiments with 8. duttoni. 



" It has been demonstrated by one experiment that A. Icctularia fed on an in- 

 fected mouse and innnediately afterwards upon a healthy mouse is capable of 

 transmitting the sidrochete." 



Leucocytozoon niusculi, a parasitic protozoon from the blood of white 

 mice, Annie Pokter (Proc. Zoo?. 8oc. London, I'JOS, III, pp. 703-716, pi. 1. p'ff. 

 1). — Studies of a microscopic organism found in the leucocytes of mice. This 

 the author considers the first recorded from the mouse. 



A monozoic cestode-like blood parasite (Saguinicola armata and inermis), 

 InIakianne Pleiin (ZooI. Am., ,i.i {IDOS), Xo. l.l, pp. .'i27-j'i'K fiu-s. 6). — This 

 parasite occurs In tlie blood system of Cyprinid fishes. 



Helminthological technique, M. Langeron {Arch. Par., 12 {1908), No. 1, 

 pp. J50-L5>i: f'&«. <■» Joitr. Trop. Vet. 8ci.. 3 {1908), No. .',. pp. .{95--) .9<S).— Direc- 

 tions are given for the fixing, staining, moiuiting. and vn-eservation of cestodes, 

 treniatodes, and nematodes, and the eggs of these parasites. The formulas of 

 the reagents used are included. 



• RURAL ENGINEERING. 



Irrig-ated lands of United States, Canada, and Mexico, C. R. Price {Los 

 Anycirs, Cat., 1908, pp. 77. //f/v. 17, maps .'/). — This is a compilation of data con- 

 cerning public and private irrigation enterprises with descriptions of the irri- 

 gated lands and the surrounding conditions. Its aim is stated to be to furnish 

 comprehensive information to " expert, engineer, colonist, or homeseeker." In 



