1194 EXPERIMENT STATION RECORD. 



impregnate mares artificially. As was to be expected, better success attends the 

 efforts of the breeder the longer he practices the method. 



The effect of experimental epilepsy on poisoning- by tetanus toxin, L. Cesari 

 {Compt. Rend. Soc. Biol. [Paris'], 60 (1906), No. 8, pp. 397-399).— -It has been claimed 

 by a few investigators that the effects of tetanus toxin may be somewhat overcome 

 by passing an alternating electro-current through affected animals. 



This was tested on guinea pigs by the author with the result that little benefit was 

 found from the practice. Guinea pigs inoculated with tetanus toxin showed the 

 epileptiform crisis of the disease during the passage of an alternating current in the 

 same manner as shown by normal animals. The muscular contractions disappeared 

 for a few minutes after the epileptiform crisis but soon recurred again. Animals 

 treated in this manner lived little longer than the control animals. 



Treatment of demodectic mange, Cedeac (Jour. Med. Vet. el Zootech., 57 (1906), 

 Feb., pp. 80-83). — Attention is called to the undesirability of attempting to treat all 

 forms of mange and parasitic skin diseases by similar lines of treatment. In some 

 forms of mange caused by demodectes as well as phlegmenous dermatitis it is usually 

 best to scarify the affected parts and apply tincture of iodin. 



The bacillus of mouse typhoid and related forms, R. Trommsdorf (Arch. 

 Hyg., 55 (1906), No. 3, pp. 279-298). — An attempt was made to determine the rela- 

 tionship and independence or identity of various bacteria related to the mouse 

 typhoid bacillus. 



In experiments along this line a series of agglutination tests were made, but it 

 was found that agglutination is a very uncertain method of determining the identity 

 or specific individuality of bacteria of this group. Apparently Bacillus enlerilidis is 

 distinct from the other bacteria of this group, while there are various groups under 

 the paratyphoid bacillus as well as of the hog cholera bacillus. It was impossible 

 by means of agglutination tests to differentiate between the mouse typhoid bacillus, 

 hog cholera, paratyphoid, and meat-poisoning bacillus. 



Attention is called to the fact that the bacilli which have been used for the destruc- 

 tion of mice as well as the hog cholera bacillus may be pathogenic for man. The 

 author believes, however, that there is no justification for prohibiting the use of cul- 

 tures of mouse typhoid bacillus in the destruction of field mice. 



RURAL ENGINEERING. 



Irrigation from Snake River, Idaho, H. G. Raschbacher (U. S. Dept. Agr., 

 Office Expt. Stas. Circ. 65, pp. 16). — The territory covered by this circular extends 

 from the Wyoming line to Salmon River, a distance of about 200 miles. In this area 

 there is about 800,000 acres at present under ditch, and the proposed works will 

 cover about 200,000 acres additional. Probably not more than half of this land 

 is at present, under cultivation, leaving a large area which is awaiting settlement. 



This circular is devoted to the conditions which a new settler will meet in making 

 a home in this section. With few unimportant exceptions, the settlers must secure 

 rights from companies building ditches, there being little if any opportunity for 

 securing rights directly from the streams. Most ot the canals are built either under 

 the Carey Act, under which the lands and water rights are disposed of on terms 

 specified in- contracts with the State, or under the reclamation act, which provides 

 for the payment by the settler of the actual cost of the construction of the works, the 

 lands being taken up under the homestead law, which requires the payment of land 

 office fees only. * 



Tho prices of water rights under these various projects vary from $15 to §25 per 

 acre. The expense which must be met by the new settler during the first year is 

 estimated as follows, the full price of the water right being included in this estimate. 



