284 EXPERIMENT STATION RECORD. 



iiioc'ulatioii of bacilli sopuratocl from their toxins and later giving toxin sub- 

 cutaneously in increased doses; and by inocnlating attenuated bacilli. 



On the relation of Rocky Mountain spotted fever to the typhus fever of 

 Mexico, J. F. Andickson and J. Goldjjebuku (rah. Health and Mar. llosit. Xcrr. 

 v. S.. I'lih. Health Rpts., 2J, (1009), No. 50, irp. 1861, i862).— Observations of 

 typhus fever in INIexico City bring out certain definite clinical differences betwetMi 

 this disease and Kocky Mountain spotted fever. 



A further note upon the relationship between avian and human tubercu- 

 losis, S. G. Shattociv and L. S. DunciKON ( Lancet [London], 1!)0!), If, Xo. .l), 

 pp. 1139-llJi2). — "These various results show that the white rat is inunune to 

 the avian tubercle bacillus, whether the bacillus is experimentally injected (in 

 pure culture or directly from the diseased viscera) or whether it is introduced in 

 large quantities by the mouth." 



The antibodies in tuberculosis and their relation to tuberculin inocu- 

 lation and vaccination, W. J. Butlee and W. T. IVIefford {.Jour. Anier. Med. 

 Assoc.. .').i (l!)0!>). No. 25, pp. 2092-209. 'i) . — The authors have drawn the follow- 

 ing conclusions: 



" No relation exists between the complement-binding authority and tuberculin 

 inoculations and vaccinations, between the complement-binding antibody and 

 the opsonic index, or between the opsonic index and the tuberculin skin reaction. 



"Not only have our examinations failed to show any relation between tuber- 

 culin antibodies and tuberculin reactions and inoculations, but, on account of 

 observing occasionally an inhibition of hemolysis with normal serums, we are 

 strongly inclined to believe that the complement-binding reaction is not specific 

 for tuberculosis." 



The loco-weed disease, C. D. Marsh {U. /S'. Dept. Agr., Farmers' Bui. 380, 

 pp. 16, figs. Jf). — This is a brief practical presentation of the results of the work 

 on the loco disease, intended to meet* the immediate needs of ranchmen and 

 stockmen on the western ranges and the National Forests. Detailed accounts of 

 field and laboratory investigations have been previously noted (E. S. II., 20, 

 p. 280; 21, p. 484). 



An unrecorded poison plant, A. J. Ewaut (Jour. Dept. Agr. Victoria, 7 

 {1909), No. 6, p. 391). — Pimpernel or shepherd's weather glass (AnagaUis 

 arvensis), formerly prized as a medicine, is reported to have killed a number 

 of sheep. The active principle is unknown, but it appears to be a narcotic. 

 It is also reported to have killed dogs, to which it was administered as a medi- 

 cine, by producing inflammation of the stomach. A blue flowered form (A. 

 coEriilea), which is very common, has similar properties. 



Fatal colics in consequence of mold (Penicillium glaucum) poisoning-. 

 Hack {Ztschr. Vctcrinark., 21 {1909), No. 7, pp. 328-330, fig. 1 ; abs. m Vet. 

 Jour., 65 (1909), No. J/} 3, pp. 590, 591). — A report on the poisoning of horses in 

 Hamburg l)y the feeding f)f moldy grain. 



Poisoning by raw potatoes {Veroffentl. Jahres.-Vet. Ber. Tierdrzte Preuss., 

 7 {1906 [pub. 1909]), pt. 2, p. 3^; Vet. Rec, 22 {1909), No. lll't, p. 326).--Two 

 outbreaks of cattle poisoning due to eating large quantities of raw potatoes 

 are reported. In the first, which was among a herd of cattle numbering 64 

 head, the symptoms resembled those of foot-and-mouth disease. In the second, 

 2 cows which had been fed potato parings developed eczema of the hind limbs, 

 as in the first outbreak, and in addition diarrhea. Emaciation set in and in 

 one case was so severe as to necessitate slaughter. 



Cattle poisoning from arsenate of lead, ,J. P.. Paige {Massachusetts Sta. 

 Rpt. 1908, pt. 2, pp. 183-199). — In order to determine whether farm animals 

 are poisoned by the ingestion of grass and foliage of shrubs sprayed with arse- 

 gate of lead as used in the destruction of the gipsy moth, feeding experiments 



