C 538 1 
The examination of thefe very important and in— 
terefling particulars has, I obferve, drawn me into x 
prolixity, which I fear may prove tedious to your 
Lordfhip : but fhould I have removed all doubts, 
and brought convincing proofs of the abfurdity of 
fearing a fecond ihfediion ; fhould I have fhewn in- 
oculation to be a necelfary practice, and that the 
contagious diftemper may be communicated more 
ways than one j I hope your Lordfhip will excufe 
the length of this letter. I fhall only add my earned: 
wifhes, that the legiflature may, by effectual means,, 
prevent the importation of diftempered cattle and 
hides into thefe kingdoms ; the only means of natu- 
ralizing and perpetuating a dreadful didemper, now, 
thank God ! much decreafed among us. 
I am, with the greatefl iefpedt, 
My Lord, 
Your Lordfhip’s 
Moft humble and mod; obedient Servant, 
Huntingdon, 
26 Nov. 1757. 
Daniel Peter LayarcL 
LXX. Trigonometry abridged. By the Rev. 
Patrick Murdoch, A. M. F.R.S. 
Read i Fe g/ 2 ’ r | ' H E cafes in trigonometry, that can 
1,v " properly be called different from 
one another are no more than four } which may be 
lefolved by three general rules or theorems, expreffed 
