THE PRESENT INVESTIGATION OF EUROPEAN TOUL BROOD. 35 



Tahle showing the results of examinations of European foul irooA. (The 

 samples were called " hldck hrood " by the apiarists at that time. ) 



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 following table gives the results of the examination 

 of specimens received during that year. The samples were taken 

 from different apiaries. 



Table giving a summary of the examination of specimens of European foul brood 



("black brood"). 



Brood sent by- 



Date. 



Sources of brood in New York. 



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... 

 N.D.West... 

 N.D.West... 

 N.D.West... 

 N.D.West..., 

 N. D.West.... 

 N.D.West.... 

 N.D.West..., 

 N.D.West... 

 N.D.West..., 

 N.D.West... 

 N.D.West... 

 N.D.West..., 

 N.D.West... 

 N.D.West..., 

 N. D. West. . . , 

 N.D.West..., 

 N.D.West..., 



May 1 

 May 1 

 June 25 

 June 29 

 June 29 

 June 29 

 June 29 

 July 6 

 July 6 

 July 6 

 July 10 

 July 10 

 July 10 

 July 10 

 July 15 

 July 15 

 July 22 

 ,Tuly 22 

 July 22 

 July 30 

 July 30 

 July 30 

 July 30 

 July 30 

 Aug. 20 

 Aug. 20 



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 j 



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 



BadUus 

 BaHUus 

 Bae-iMiM 

 BacUlue 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 Badllus 

 BadUus 

 Bacillus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 

 BadUus 



dl/vei. 

 alvei. 

 alvd. 

 alvd. 

 alvd. 

 alvd. 

 atad. 

 alvei. 

 alvd. 

 alvei. 

 alniei. 

 alvei. 

 alvd. 

 alvei. 

 alvd. 

 alvei. 

 alvd. 

 alvei. 

 alvd. 

 alvei. 



alvd. 

 alvd. 

 alvd. 

 alvei. 



The above table shows that Bacilliis 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 

 were associated 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 



