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It will be seen that the simple conjunctival test does not appear so reliable as the subcutaneous test, for three cows out of twenty-six (11'5 per cent.) that reacted to the subcutaneous test failed to show any reaction for the conjunctival test alone eN os. 7, 107,84), although they gave a positive reaction after the subcutaneous injection. The combined conjunctival test, however, is apparently quite as reliable as the subcutaneous test. Of the twenty-six reacters to the subcutaneous test alldoi:10.1016/s0368-1742(09)80050-7 fatcat:fwtlbdsmdzebfj2lvjuolf7y2y