332 CHAPTER 51. 
they were obferved in London in the years 
" 1763 and 1768 
" An Appendix to the Paper on the Hy^ 
drocephaliis internus («^)." 
This difeafe, on which Dr. Whytt, 
Dr. Watson, and others, have lately writ- 
ten in fo inftrudive a manner, deferves to 
be accurately noticed, and the knowledge 
of it ftrongly inculcated ; as, m the coun- 
try at leaft, it is not unfrequently mifta- 
ken, and treated as a putrid and comatofe 
fever. 
As Dr. Watson lived in intimacy v/ith 
the moft illuflrious and learned Fellows 
of the Royal Society ; fo he was himfelf 
one of its moft adtive members, and ever 
zealous in promoting the ends of that in- 
ftitution. For many years he was a fre- 
quent member of the council ; and, during 
the prefidentfhip of Sir John Pr ingle, was 
eledted one of the vice-prefidents ; v/hich 
honourable office he continued to fill to the 
{'z) London Medical Ohfsrvations^ Vol. iv. p. 131— 
[a) Ibid. p. 321-329, 
end 
