VOYAGE TO NEW SOUTH WALES. 
plaint, that I was induced to repeat it; and I found it 
effe(fi:ual in this, as well as in all fubfequent cafes. As foon 
as we got to fea, the motion of the fhip adled on all thofe 
who were affected, to the number of feventeen, in a mod 
furprifing and extraordinary manner. Indeed it was fo fud- 
den, that it was like a placebo, I could never account, with 
any fatisfadion to myfelf, for the origin of this uncommon 
difeafe, though much acquainted with thofe incident to 
feamen \ nor did I ever fee or hear of any that refembled 
it. The moft fteady and prudent of the mariners, even thofe 
who had their wives on board, were equally affedted with 
thofe who led more irregular lives. At firft I attributed it 
to the verdigreafe that might gather on the copper utenfils 
wherein the provilions were cooked \ but I am now fully 
perfuaded that this was not the fource from which it pro- 
ceeded ; for at the very time it was moft prevalent, and at- 
tended with the greateft degree of inveteracy, the coppers 
were cleaned, and made as bright as they could be, every day, 
tinder my own infpedion. Another proof, and a very ftrong 
one, that it did not proceed from the before-mentioned caufe 
is, that the provihons flill continued to be drefled in the 
&me coppers, when the fmalleft trace of the difeafe was no 
longer 
