. Bulletin. 1901-13. Agriculture; Agriculture. COMl'AHISON WITH SIMILAR OUOANISMJ^. 39 several par(i< uLns i. .., ih. rot does not, M ih. lallxM- do,. produee -as. 'Hh. fonurr is not )»y 1.^ it, '^ the latter is , .tc-. Ti,. of dill(.s. 1 here are of coiirso, nuMHM-ous points in tlie two a-n^s hut they in enough essenliai lH,ints (o show ..v not the same. Baril/.s olmur:. Hanison/'-Cultunvs of this orknts. At the same tinu' paraUrl were made with cultunvs of the caUa-rot ^.nn. ^j^ twe
. Bulletin. 1901-13. Agriculture; Agriculture. COMl'AHISON WITH SIMILAR OUOANISMJ^. 39 several par(i< uLns i. .., ih. rot does not, M ih. lallxM- do,. produee -as. 'Hh. fonurr is not )»y 1.^ it, '^ the latter is , .tc-. Ti,. of dill(.s. 1 here are of coiirso, nuMHM-ous points in tlie two a-n^s hut they in enough essenliai lH,ints (o show ..v not the same. Baril/.s olmur:. Hanison/'-Cultunvs of this orknts. At the same tinu' paraUrl were made with cultunvs of the caUa-rot ^.nn. ^j^ twenty- four hours after inocuhition nearly all the plants inoeulated wit^i the calla oerm showed the characteristic symptoms of disease, and t^e decay continued to progress until the plants were practically destroyed. On the other hand Harrison's organism did not affect the plants in any way, showing that the two organisms are not identical. llelnzs hyacinth germ, {Bacillus hyacinthi septicvs)J'—In order to learn the effect of the calla organism on hyacinths, more than 100 hyacinths were inoculated with fresh cul- tures of the calla germ. The leaves, flower stalk, and flowers were inoculated. Most of the inoculations were made in plants grow- ing in the open when the Aveather was bright and warm. A few hyacinths were potted and placed in a greenhouse. The flowers were inoculated by dropping a single drop of a 2tl:-hour-old beef-l)roth culture into the flower. The leaves and flower stalks were in- oculated l)V scraping a quantity of the fresh o-rowth of the organism from a slant-agar fig. hyacinth inomi- glO^in Oi tue uiga , ,. , , lated in a flower with the calla surface, applying it to the diseased spot, organism. and then puncturing the plant with a sterile needle through the mass of organisms. None of the plants in the open showed any svmptoms of the disease whatever, although they were watched daily^for more than two weeks. The inoculated plants in the greenhou
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