THE PRESENT INVESTIGATION OF EUROPEAN FOUL BROOD. 



35 



Table shoicinff the results of examinations of European foul hrood. {The 

 samples were called ''black brood" h}/ the apiarists at that time.) 



Brood sent by- 



Bacteriological findings. 



W. D. Wright 

 W.D.Wright 

 N. D. West . . . 

 N. D. West . . . 

 N. D. West . . . 

 N. D. West . . . 

 N. D. West . . . 

 N.D. West... 

 N. D.West... 

 W. D. Wright 



June 4. 

 June 12 

 June 12 

 June 12 

 June 12 

 June 12 

 June 12 

 June 12 

 Aug. 5. 

 Oct. 8.. 



Bnrilbift <ilrei. 



Jkl,'illii.< oini. 

 llaril/„.< «lrri. 

 Jktrilliis a/rri. 

 Baril/,,^ nivn. 

 J-!,i<-ilhis „lni. 

 Bar/lhls nirri. 

 J!,triln,.< n/r, i. 

 Bitrilhis aliri. 

 BacUlati alvri. 



It can be seen clearly from the above table that the diseased condi- 

 tion which the apiarists were calling " black brood " is really the 

 disease " foul brood " of Cheshire and Cheyne, because of the con- 

 stant presence of Bacillus alvei. 



The work upon European foul brood was continued during the 

 year 1903, The folloAving table gives the results oi the examination 

 of specimens received during that year. The samples w^ere taken 

 from different apiaries. 



Table giving a sut)nnari/ of the examination of spcciinois of European foul brood 



(" black brood "). 



Brood sent by- 



Date. 



May 

 May 

 June 



D. Wright 



D. Wright 



D. West 



D. West June 



D. West June 



D. West ' June 



D. West June 



D. West Julv 



D. West July 



D. West ! July 



D.West '< July 



D.West , Julv 



D. West t July 



D.West July 



D.West Julv 



D.West Julv 



D.West July 



D.West July 



D.West July 



D. West July 



D.West July 



D. West Julv 



D.West Julv 



D. West July 



D. West A>ig. 



D.West Aug. 



Sources of brood in New York. 



Columbia County 



Albany County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Montgomery County . 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Montgomery County . 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Schoharie County 



Greene County 



Albany County 



Greene County 



Greene County 



Greene County 



Bacteriological 

 findings. 



Bacillus 



BaciUns 

 BnrlUug 

 B<iciHu:< 

 ISarifhix 



/;., 



I Ul rill II I' 

 JUlrilhli^ 

 l:,li-illils 

 llarilliis 

 Biirillii:< 

 Bnril/ns 

 Bite ill IIS 

 Biirillii,'^ 

 Burillii.< 

 Bnrilhis 

 lUirilliis 

 B: I rill IIS 

 Bacillus 

 Bncilliis 

 Bitcilliis 

 Bacilhis 

 Biinlliis 

 Bacilhis 

 Bacillus 



alvei. 



alvei. 

 alvei. 

 alvei. 



ali-fi. 

 alvri. 

 alvei. 

 ahri. 

 alrci. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 

 alvei. 



The above table shows that Bacillus alvei was present in each speci- 

 men of European foul brood received. Frequently pure cultures 

 of this species were obtained from dead larvae, but with it sometimes 

 Avere as.sociated other rod-shaped bacteria of different species. 



In 1904 the work upon bee diseases was confined principally to the 

 diagnosis of the diseased brood sent in and a further study of the 

 organisms found. Bacillus alvei was found in a large number of 



