Bui. 166, U. S. Dept. of Agriculture. 



Plate I. 



Fig. 1. — P + = Seromucous discharge with 

 purulent flakes. 



Fig. 2. — P+ + = Distinct purulent discharge. 



Fig. 3.— P + + + = Purulent discharge with Fig. 4.— P + + + + = Strong purulent dis- 



swelling of the eyelids. charge with swelling and gluing together 



of both lids. 



Varying Degrees of Reactions in the Ophthalmic Mallein Test for Glanders. 



