125 



llioso of I^rofessor Biiri-ill.of the University of Illinois, on the canse of 

 an ohscnrc disease in corn. 'Die eonchision is reached that the disease 

 both in the corn stalk and in tlie animals A\hich have fed on them is 

 cansed \)\ " a inicio-oi-pmism hel<)n»»in<r to the class of ovoid-belted, 

 ijferms. to which \ariety of diseases also belono^ the swine-plague, 

 Southern cattle-))la<iiie. \\ ild seuche. lien cholera, and yellow fever in 

 man." Methods of jjrexcniion l)ased on this theory are also given. 

 It should be remembered. howe\-ei'. that veterinarians generally have 

 been inclined to altribiitc ihc disease to the mechanical action of the 

 corn stalks on the alimentary canal. Fiu'ther investigati(ms are 

 needed to settle this matter definitely. 



71ie xo-called lnj<lroj>]iohl(t in cattle (pp. 213-244). — While unable 

 to define this di'^ease. the author states that he has succeeded in culti- 

 vating •• one germ fi'om seveial outbreaks, and produced apparently 

 the same disease by inoculating healthy animals with pure cultures 

 obtained from the cattle (though not /'/; cattle),'' and has "again 

 derived pure cultures from each animal and found the same micro- 

 organisms in the tissues of these animals."' 



This germ is described as belted, twice as long as the germ of South- 

 ern cattle-plague and much naiTower. It is navicular in shape, the 

 pole ends being decidedly pointed and not rotnid, but longer than 

 wide. The uncolored sul)stance occupies two-thirds of the body when 

 the germ seems to have arrived at full development. On agar-agar 

 it grows as a yellowish gray (dirty yellow), dryish, non-lustrous coat- 

 ing, Avhich as it becomes aged is very friable. It does not fluidify 

 gelatine. It was found very difficult to keep the organisms alive in 

 artificial media, and then only for a few generations. 



Investigations of outbreaks of this disease at Crete and Dorchester, 

 Nebraska, are reported, including autopsies of diseased animals. The 

 symptoms were found to correspond very nearly with those given by 

 standard German authors as the indications of rabies in cattle, and 

 the disease seems in some way to l)e connected with the presence of 

 dogs which are asserted to be " mad." As a preventive measure the 

 author recommends a sti'ict dog license system, with a relatively high 

 fee for females. 



Coiitaf/'ious iii,f<iiii iiKitioii of tlic (■(iriicd ill (((ttlc (]))). 247-252). — 

 This includes a description of the clinical ])henomeiui and |)atholog- 

 ical lesions of this disease. In bSSfs quite extensive outbreaks occurred 

 in Nebraska, at Keai'uev and (iibbon, and near Lincoln. The disease 

 first manifests itself i)y the discharge of a thin, clear, watery fluid 

 from the conjunctival sac. The eyelids are i)artly closed and some- 

 Avhat swollen, though the animal can oi)en them easily enough when 

 startled. The dischai-ge rapidly increases in (piantity. the conjunc- 

 tiva l)ecoming more and uu)re swollen until, in sevei'e cases, the 

 engorgement of the vessels becomes so intense that its general color is 

 almost a ditluse copper-red. In many severe causes the discharge 

 becomes i)urulent. The animals do not show nuich rise in tempera- 



