54 Progress of Vaccination in Ireland. 



If it have not spread in Ireland with the rapidity it has 

 done in other countries, we may in future have reason 

 to congratulate ourselves on the slowness of its progress ; 

 whence, according to the proverb, may result its sure- 

 ness. I am persuaded, that, on this occasion, festina 

 lente is an excellent maxim. I am apprehensive, that 

 the enthusiastic rapidity pursued in some countries, 

 where thousands and tens of thousands are inoculated 

 with a sort of magical slight, will eventually injure its 

 repute. The fact is, that the failures which ha\'e hap- 

 pened in England, and which have excited so much 

 scurrilous and unphilosophical disputation, are evidently 

 imputable in a great measure to this very cause. The 

 cause of vaccination is also injured by the quires of un- 

 intelligible jargon on the subject, which are daily issuing 

 from the teeming presses in our sister island. * * 

 -* * * * * * 



Wm. Patterson. 

 Derry, April 17 t/i, 

 1806. 



X. Remarks on a Passage in the Chemical JFritings of 

 the celebrated Scheele. In a Letter from Adam Sey- 

 BERT, M. D., of Philadelphia, to the Editor. 



Sir, 



IF you conceive the following trifle worthy a 

 place in your Journal, you are welcome to make use of 

 it. I do not attach any importance to it, other than its 

 putting chemists upon their guard, in admitting impli- 

 citly the experiments related by authors of the first re- 



