Sept. ax, 1914 Birds and Chestnut Blight 419 
1 Div. = 10 mikrons 
| | ee | 
Fic. 2.—Types of spores other than those of Endothia parasitica obtained by the microscopic examination 
of the centrifuged sediment from the test of bird No. 23, a brown creeper. Brown-spored forms appear 
to predominate: a, Hyaline; 5, hyaline; c, dark brown; d, nearly black; e, hyaline; f, light brown; g, 
smoky; #, pale smoky; i, dark smoky; j, hyaline; &, pale smoky; J, dark smoky; m, smoky; 7, hyaline; 
o, brown; #, hyaline; ¢g, dark smoky; 1, hyaline; s, very dark, almost black. 
