ll M r.l.K.HI. 



and carried mil successful experiments in infection of healthv 

 Sorghum. 



Diseased fields should have tin- >'<>////,/'/// stuU>le burnt out. 

 ami other crops cultivated on tin-in for several pears. 



Bacterial Disease of Maize. 1 



From dark slimy spots on voiini: mai/e-plaiit- \vlii-h had died 

 from some unknown disease, lUirrill isolated Bacill lies. 



Pure cultures \vi.-re obtained and minutely de-cril>ed, l.ut n<> 

 \ 'rd is Liivt-n of its n<e in infection-experiments. 



Red-coloration of Wheat. 



This is a phenomenon not uncommon on wheat-^rain. \\ln-ic 

 it may IK- epidemic. Prillieux- ascribes it to ,-i Mi,, 

 which he found associated with it: as, howi-M-r, neither pure 

 cultures were made nor any experiments in infection carried 

 out, the cause of the disease is still doubtful. Examination of 

 diseased irrain showed that the starch-brains and even cell-walls 

 had l.een di-solved. 



Mosaic Disease of Tobacco. 



Tin- di>ease of the tobacco is well known in the Nether- 

 lands. li makes its appearance as a mosaic-like pattern on 

 the leaf, due to isolated spots becoming li,uht-i;ieei]. then dyin^. 

 .Mayer : ascribes the disrase to the influence of liacteria, although 



infection-experiments have hitherto failed: other observations 



on the di>ea^e do mt confirm this conclusion. 



Potato-Rot.' 



Kithn descrilied a dry-rot or tuhei-rot of the jiotato which 



had been kno\\n since INJJO. The disease appear- -ein'i.dly 



after har\e-t and la-l- till spring. The inliei- -hri\el up and 



Very lil'ittle. 



1 lluiiill, .l'ii-'-. /-.'.'/,. ,-. Station, Univ. ./'///'';</-, ls s '.'. 

 I nalet /. tci. natur., ><-i-. \i., s. Is7 s . p- -!<. 



"Uebei 'li<- Mii^iik-ki.-inkln-it ilf- T;il>.-il. ,1 v ' 



Kiilin. /'- Ki-'i iil-li' iii a </. A' ///'(/// '''//!-, l~ 



I t.-\t li(...k-> nt I'l :ilik .ili'l ^ 



Ili-mki- iiml I'.i-rtliulil. l>i- '/.,-' ni,:i ,1. K<iri"ii'-l .l<n-h /'. . I- 



K 'Illi-l, ". ,,,-ii'li. lint'lir, ,-//,. ' . IS'.II. 



