RURAL ENGINEERING. 917 



repeated intravenous injections of rabies virus the milk showed no virulence. 

 n is suggested therefore thai the milk of such animals may l»«' used without 

 danger. 



Paralysis of the lower jaw in dogs independently of rabies, Dauphin I Rec. 

 He'd. \<t.. 83 (1906), Vo. i. pp. .'> 30). in several instances, the author has 

 observed paralysis of the lower jaw in which the dog was certainly no1 affected 

 with rabies. Since this symptom is depended upon to some extenl in suspected 

 cases of rabies, the observations of the author make it desirable to exercise 

 greater precaution in reaching ;i diagnosis. 



Esophageal spiropterosis in dogs in southern Tunis, Li Maitbe (Rec. 

 _\h<l. iv/.. 83 (1906), No. I. pp. t7-24). — The climate of Tunis has been found 

 id be very unfavorable for European dogs. A large proportion of them die of 

 distemper, rabies, and a sori of malarial fever accompanied with anemia and 

 esophageal spiropterosis, the latter being most important 



This disease is due to the presence of Spiroptera sanguinolenta in the esoph- 

 agus of infected dogs. The author made observations on a number of cases of 

 this disease and found that at least J terminated fatally. The disease is most 

 prevalent in spring and summer. There appears to be an undetermined inter- 

 mediate host of this parasite, it is impossible to recognize the earliest stage 

 oi infestation. As soon as the disease can be recognized it is desirable to 

 administer emetics and anthelmintics. The author prefers turpentine for this 

 purpose. 



Internal mycoses and the micro-organisms which cause them, P. SAVOUR^ 

 (Arch. Par., 10 (1905), No. I. pp. 5-70, figs. 20 ) . — Elaborate descriptions, with 

 notes on their life history, are given for various species of Mucor, Rhizopus, 

 Rhizomucor, and Aspergillus. Certain species of these genera have long been 

 known to cause pathological lesions in animals and man. 



It was found that these genera may cause the formation of tubercles in sus- 

 ceptible animals which are characterized by a disintegration of the tissues and 

 sometimes of the whole organ. As a rule, susceptible animals appear to show 

 a certain amount of resistance to the spores of these molds, due to the phago- 

 cyte action of the endothelial cells of the hlood vessels. 



A series of experimental inoculations were made on rabbits, during which 

 various species of these genera were used. Mucor racemosus was found to be 

 nonpathogenic. More or less serious lesions were caused by .1/. corynibifer, J/. 

 regnieri, .1/. truchisi, Rhizopus equinus, Rhizomucor parasiticus, Aspergillus 

 fumigatus, A. oryzw, and .1. sulphureus. 



Toxic substances produced by animal parasites, It. Blanchabd (Arch. /'<//•.. 

 10 iV.it>.-,), No. /. />/>. 84-104)- — An elaborate study was made of animal para- 

 Bites of various orders, and the author comes to the conclusion that all animals 

 Including parasites of all groups secrete toxins which exercise more or less 

 active effects. 



The parasites of the intestines, including nematodes, tapeworms, flukeworms, 

 etc., produce toxins which are. however, eliminated by the intestines of the host 

 without producing any serious consequences. Parasites in the blood such as 

 Filaria. Bilharzia, etc. cause a very slight intoxication, while the toxins pro- 

 duced by the blood-infesting protozoa such as trypanosomes are eliminated 

 through the kidneys. 



RURAL ENGINEERING. 



Reports on the irrigation service in Upper and Lower Egypt, A. L. Werb 

 and R. E. Vebschoyle (Rpt. Pub. Works Dept. Egypt, 1905, pp. ~>i-l(i'.>. pis. 6).— 

 These reports are part of a complete report upon the administration of the 

 Public Works Department in Egypt for 1904, by Sir William Garstin, and are of 



