1 813.] Bcientific Intelligence. |4S 



pox, and some physicians even affirm that they have communi- 

 cated the true cow-pox by inoculating with the liquid which they 

 contained.* lo other cases they have resembled a miliary erup- 

 tion. Tliey were hard, and contained no vesicles ; sometimes 

 they amounred to nothing more than red spots, or blisters. f We 

 might refer likewise to the number of consecutive eruptions 

 observed in cases of vaccination, the secondary cow-pox either 

 appearing upon the same place as the first, or in other parts of 

 the body, if it were not demonstrated in a great many cases, that 

 the children have produced them themselves, by scratching dif- 

 ferent parts of their body after having broke the pock produced 

 by inoculation. Those pocks which have the closest resemblance 

 to smali-pox or cow-pox have always been observed to be more 

 fugitive than the true cow-pox or small-pox-J 



It follows from the preceding detail, that the cases where erup- 

 tions and fevers have taken place after vaccination, compared 

 with those in which they have not taken place, are in so small 

 a proportion that they cannot be referred to the cow-pox virus, 

 or regarded as a consequence of its properties. They can only 

 be referred to accidental circumstances, either general or indi- 

 vidual. Though these circumstances cannot always be pointed 

 out in a particular case, yet the greater number of them, espe« 

 cially when a great many eruptions have appeared at the same 

 time, are obviously connected with the existence of the small- 

 pox in the places where vaccination is practised. Hence we 

 have no proof whatever that vaccination introduces into the body 

 a poisonous ferment, which ought to be expelled by fever and 

 eruptions. The very opposite inference ought to be drawn from 

 the very great number of cases where vaccination has produced no 

 sensible change, except in the very part where the inoculation was 

 performed, and has neither occasioned fever nor general eruption^ 



(To he continued.) 



Article X. 



SCIENTIFIC intelligence; and notices of subjects 



CONNECTED WITH SCIENCE. 



1. Mr. Cavendish. 



In our account of the scientific labours of this celebrated 

 philosopher io our last number, we inadvertently omitted to 

 notice one of his papers. It was the last paper which he ever 



* Bibl. Brii. vol. xv. p. 86, 369; xxxix. 94. 



f Bibl, Brit. vol. xv. p. 8^, 369, 370, 379 ; xxxix. 93. 



X Bibl. Brit. vol. xiv. p. 258, 230 j xvi. 203, 297, 299, 300. 



