138 
HA BOLD C. ERNST. 
Out of these, five were made more or less tuberculous, as 
proven by microscopic examination, and in forty-four the re¬ 
sults were negative—that is to say, we obtained 5 149, or 10.2 
per cent, of successes out of all inoculations in rabbits. 
There were used thirty-three different specimens from thir¬ 
teen different cows—that is, there were 23 per cent. (3 : 13) 
successful results from the cows used, and 15.15 per cent. 
(5 : 33) successful results fram the specimens used. 
Positive results were obtained from 
Cow P twice (at different times). 
Cow L once. 
Saunders cow twice (at different times). 
The results of the inoculations of guinea-pigs are more 
striking. There were sixty-five animals used in all. Of these, 
nine were inoculated with sour milk or cream, and two died 
in a day or two of other diseases (peritonitis and pleurisy). 
There are, therefore, but fifty-four that should be counted. 
In them there were twelve positive results, or 28.57 P er cent. 
(12:42) successes out of all the inoculations. There were 
used thirty-two specimens from fourteen different cows, and 
the successful results came from six different cows—that is, 
42.8 per cent. (6: 14) of the cows were shown in this way to 
have infectious milk, and 37.5 per cent (12: 32) of the speci¬ 
mens used were shown to have active infectious properties. 
Positive results were obtained from 
Cow P (three times in two different inoculations). 
Cow D (three times in three different inoculations). 
Cow F once. 
Slocum cow once. 
Saunders cow once. 
Mayhew cow (three times in two different inoculations). 
The combining of the results obtained from both rabbits 
and guinea-pigs shows the following : Successful results were 
obtained in milk from cow P three times (two different speci¬ 
mens) in guinea-pigs, and twice in rabbits (two different speci¬ 
mens ;) from cow L once in rabbits; from cow O three times 
(three different specimens) in guinea-pigs ; from cow F once in 
guinea-pigs; from the Slocum cow once in guinea-pigs ; from 
