NOTE. 
To N. 491, p. 64, 1. r. hence we are led to a Difcovery, &e. add 
this Note, The Difcovery of this Analogy was publijhed. by the 
Rev. Mr. William Barlow, in thefe Tranfactions, N. 45 8, 
p. 457> ^ nm J 74 0, C* M. 
ERR AT A. 
In N°. 495. p. 514, /. 2. iox with read within , Ibid. p. 515, 
i. 24. for Nonius read Catgut Line. 
