356 [ ASSEMBLY 
the fungus is concealed within the tissues of the host. A writer re- 
cently commenting on the disease of the lily, and acknowledging his 
total ignorance of its nature, said: “ But it makes little practical 
difference, as all these low forms of fungous life, whatever may be 
their names or character, are usually destroyed by sulphur,” and so 
are birds caught by putting salt on their tails. My youthful exper- 
ience in bird catching, however, soon taught me that there existed a 
prime difficulty in getting the salt in contact with the bird, and so he 
who tries sulphur on all fungi will soon learn that a like difficulty 
awaits him. As a rule sulphur is an effective fungicide for the 
epiphytic kinds, but it goes without saying, one would think, that it 
is useless for the endophytic ones. For when the fungus is entirely 
within, the utmost efficiency that could be expected from the external 
application of sulphur would be to prevent the production or germ- 
ination of spores on the surface of the host, and in some cases to 
thus act asa check to the spread of the disease. And what is true of 
the application of sulphur is true of all other fungicides employed at 
the present time. 
The following diseases are treated more or less fully in this 
report : 
Diseases of the pear: 
Pear blight. 
Leaf blight and scab. 
Leaf brownness. 
Leaf yellowing. 
Diseases of the apple: 
Apple blight. 
Leaf blight and scab. 
Diseases of the quince: 
Quince blight. 
Leaf brownness. 
Leaf mildew. 
Quince rot. 
Diseases of the peach: 
Yellows. 
Curl. . 
Gumming or gummosis. 
Diseases of the tomato : 
Rot in green tomatoes. 
Rot in ripe tomatoes. 
Disease of oats: 
Smut. 
Disease of clematis : 
Rotting of the roots. 
Disease of Canada thistle : 
Brown rust. “a 
