124 How TO Grow Cut Flowers. 



I do not remember to have seen harm from this, but it 

 should be avoided as much as possible on general prin- 

 cii)les, for certainly no one would recommend the use 

 of sulphuT'in the soil. 



I have known of several, belonging to the class of 

 those who think " if little is good, more is better," who 

 have tried burning the pure article on a hot brick, or 

 by throwing some among the tobacco while fumigating, 

 thinking thus to relieve the plants of the fungus. They 

 succeeded, and were able to carry out both fungus and 

 leaves at the same time. This cannot occur when ap- 

 plied to the flow pipes as a wash, and the fumes pro- 

 duced in this wa}'^ accomplish the purpose at a mini- 

 mum of rislv. 



Black spot is an- 

 other fungoid dis- 

 ease. Prof. Windle, 

 of Purdue Univer- 

 sity, illustrated an 

 article upon this 

 subject, with views 

 ^*8. 30. of the disease ob- 



tained through the use of the microscope, and I am in- 

 debted to him for the illustrations used here. This 

 fungus appears to the naked eye like black spots on 

 tlie surface of the leaves as seen in fig. 30. The growth 

 is rapid and soon assumes form under the glass as seen 

 in fig. 31. Prof. Seymour tells us these throw off spores 



