190 HevieUK 



ber of children, who were inoculated by me, one, two, 

 or three years ago, and I did not, in a single instance, 

 detect any unpleasant symptom imputable to it. ' ' Pages 

 77—84. 



* vf-- * * * 



*' p. S. Dr. Patterson, of Londonderry (who intro- 

 duced the new practice into the north-west of Ulster), 

 has favoured me \\\\X\ some communications relative to 

 the cow pock. He is of opinion, that vaccinated sub- 

 jects are considerably affected by atmospherical injiuence. 

 He says, he has observed a constitution of the air, which 

 might be denominated the Cutaneous, during which 

 patients passing through cow pock seemed more or less 

 disposed, by the appearance of concomitant eruptions, 

 to partake of the general disposition to cuticular in-ita- 

 tion. Some symptoms also seemed to depend upon 

 the state of the M^cather, at particular times. He has 

 reported several cases, as illustrative of this doctrine. 

 In one, a morbillious eruption was observed. That it 

 was not really measles, was proved by the patient being 

 severely attacked with that disease, t^vo years afterwards. 

 In ,another, an anomalous pustular affection seemed 

 somewhat to modify tlic vaccine. Scabs, and other 

 cutaneous complaints, resembling ^'aricella, &c. occur- 

 red in others, but which did not, according to Dr. Pat- 

 terson's observations, cither materially interrupt the 

 progress of the cow pock, or leave any doubt upon his 

 mind of the patients having had the genuine disease. 

 Some were affected with severe sickness and vomiting. 

 How for tlicse efforts arc referable to the causes assigned 



