EXPKRIMKNT WITH IMPURE I.YMPH. 121 



Dec. IG. — The dead portions of the integument 

 are removed, leaving deep chasms to be filled up by 

 granulations. 



Dec. 20. — The sores are healthy, requiring only 

 time to perfect the healing process. — Two days subse- 

 quently a sketch of them was made. See twenty-fourth 

 day, Plate 5. 



This case differed in no essential particular from 

 others inoculated with limpid fluid ; but the local effects 

 were augmented, and the sloughing was more extensive 

 than it generally is ; circumstances which might depend 

 on the quality of the matter employed. It is difficult, 

 however, to speak' with certainty on this point, as ana- 

 logous experiments have not invariably terminated in 

 the same manner ; and, as the next instance will shew, 

 sloughing equally as great may follow if the lymph is 

 taken from t//e ear'ly vesicles of confiuent variola. On 

 referring to page 112 it will be seen, that four points 

 imperfectly charged with the lymph of the eruptive 

 vesicles of a sheep affected with the confluent variety 

 of small-pox, were used for ovination. The experiment 

 was performed on November 13, and two days after- 

 wards the specific inflammation of the incisions had 

 commenced. 



Seventh day of ovination. — The local symptoms 

 have gradually increased since Nov. 15 ; and now dif- 

 fused roseola is present, but the health of the sheep is 

 unaffected. 



Eighth day. — A few papube can be detected. 



Ninth day. — The roseola has declined. Papulae 

 stationary. 



Tenth day. — The inflammation of the punctures still 

 keeps extending : most of the papulcC have disappeared. 



R 



