884 EXPERIMENT STATION BECORD. 



wMcli the pathological lesions were somewhat different from those which 

 have usually been described. The mucous membi'anes were somewhat bluish 

 and a yellowish bloody infiltrate collected in the thoracic cavity. The blood in 

 the large vessels was unusually black. The pharyngeal lymphatic glands also 

 exhibited a blackish red color. 



Chronic milk fever, T. Xissen (Norsk Vet. Tidsski:, 19 {1901), No. 10-11, pp. 

 2JiJt-2^9). — A short account of the symptoms of milk fever with notes on the 

 occurrence of this disease without immediate connection with parturition. A 

 detailed clinical statement is given of a case of chronic milk fever which per- 

 sisted for 4 months and was at first treated as a case of malnutrition. Finally 

 pronounced symptoms of milk fever appeared. The usual air treatment for 

 this disease was then given with the result that complete recovery occurred 

 promptly and the chronic symptoms which had persisted for 4 months also 

 disappeared. 



Foot-and-mouth disease, L. Gkanato {Rev. Agr. [Sao Paulo], 13 {1901), 

 No. l.'/o, pp. 319-491). — The symptoms, etiology, distribution, and therapy of 

 this disease are briefly discussed. In disinfecting after its occurrence sulphate 

 of coiiper or creolin is recommended. 



The connection between the weather, the mineral content of feeding stuffs, 

 and osteomalacia of cattle, M. Lewite {Mitt. Landiv. Inst. Leipzig, 1901, No. S, 

 pp. 69-112). — During the year 1004 the weather was unusually dry and simul- 

 taneously a large number of cases of osteomalacia in farm animals were 

 observed. 



The conditions surrounding this outbreak of osteomalacia were carefully 

 studied by the author, particular attention being given to chemical analysis 

 of all the ordinary feeding stuffs used in localities where the disease occuri'ed. 

 Forage plants produced during the dry season of 1004 as compared with those 

 which occurred during the wet season of 1002 contained less phosphoric acid 

 and more lime. It is improbable, therefore, that the osteomalacia which 

 occurred in the winter of 1004-5 was due to the lack of lime in the feeding 

 stuffs harvested during the previous growing season. In the opinion of the 

 author the rations as a whole, containing as they did material left over from 

 a previous j-ear and imported from outside sources, were defective in lime and 

 led to a softening of the bone tissue. 



Bacteriological study of chronic pneumoniae of cattle, E. Bergeb {Ztschr. 

 Infcktionskraiik. u. Hijg. Uaustierc, 3 {1901), No. S-.'i, pp. 356-381) .—The 

 pathogenic organisms found by the author in cases of lobular pneumonia of 

 cattle were identical in most of their characters with the micro-organisms ob- 

 served in human pneumonia. Bacillus pyogenes is frequently found in associa- 

 tion with the pathogenic organism of pneumonia. It is capable of causing 

 suppurative and metastatic broncho-pneumonia in cattle similar to that which 

 has been observed in hogs and which at times has been mistaken for tubercu- 

 losis. 



The danger from feeding hay that contains ergot, J. H. McNeil and L. H. 

 Pammel {lotva Sta. Press Bill., Jan., pp. 8, figs. 21). — Cattle are most com- 

 monly affected with ergotism but the trouble may occur with other domestic 

 animals including poultry. During the past year an unusual amount of ergot- 

 ism was observed in Iowa, particularly where large amounts of hay were used 

 containing wild grass. Such hay is not always dangerous even when infested 

 with ergot, but should always be fed with caution. The nature of ergot is 

 briefly described and notes are given on the symptoms of ergotism. In the 

 nervous form of ergotism there is a contraction of the blood vessels which re- 

 sults in dullness and depression. In the gangrenous form of the disease the 

 contraction of the blood vessels may be so pronounced as to cause death and 



