'332 Upon the variegated Colours of Bodies 



of March 1800 to the 25th of November 1806, 11,504 per- 

 sons have been inoculated with vaccine infection at the Dis- 

 pensary for Infant Poor, and 2,831 at the Cow Pox Insti- 

 tution, making a total of 14,335, exclusive of the number 

 inoculated at Hospitals and other places, where no registry 

 is made and preserved. 



Th>it it is the opinion of this committee, that the cow pox 

 has been found to be a mild disease, and rarely attended with 

 danger, or any alarming symptom, and that the few cases 

 of small pox which have occurred in this country, after sup- 

 posed vaccination, have been satisfactorily proved to have 

 arisen from accidental circumstances, and cannot be attri- 

 buted to the want of efficacy in the genuine vaccine infec- 

 tion as a preventive of small pox. 



That it is the opinion of this committee, that the causes 

 which have hitherto retarded the more general adoption of 

 vaccination in Ireland, have, in a great measure, proceeded 

 from the prejudices of the lower classes of the people, and 

 the interest of some irregular practitioners. 



To which report the College agreed. 



Extract from the minutes. 



James Henthorn, sec. 



LIT. Summarj/ Coits'tderations upon variegated Colours of 

 Bodies when reduced into thin Pellicles ; to which is added 

 an Explanation of' the Colours of tampered Steel, and of 

 those of Peacocks' Feathers. Extracted from a Work on 

 Colours ; ly C. A. Prieur*. 



Certain bodies of a very great tenuity, and the thickness 

 of which varies progressively throughout their whole extent, 

 exhibit, as is well known, a set of colours shaded in various 

 and sometimes in very brilliant hues. It is not my inten- 

 tion to describe here these kinds of colours, and far less to 

 dispute their peculiarities, so admirablv described by New- 

 Ion. I shall niertly endeavour to draw some inferences upon 



* From y?vnalcs de Chbnie, tom.ki. p. 154. Se« Phil. Mag. vol. xxviii. 

 pp.162 and 2ia 



the 



