“ * syphilitic psoriasis with the yaws tubercles.’ 1 A clearer case of 
“ frambesial eruption supervening on venereal infection of syphilis 
“cannot be found.” 
W. Boyd’s case is given as follows .- — “ A man had a well-marked 
“ and indolent Hunterian chancre, and bubo, when he came under my 
“ notice, and at the same time a mild eruption of frambesial tubercles, 
“ which he stated made their appearance two weeks after the 
“ syphilitic sore.” 2 
H. Bennett’s case: — "The patient was a young woman, who 
“ contracted the syphilis first, and then got either a primary or a 
“ secondary ulcer inoculated in an unknown manner with the yaws." 2 
hrorn the confidence with which the syphilis is spoken of, one 
presumes that a venereal chancre was known. I have, therefore, 
included the case here. 
Dr. Wallbridge’s case is quoted by J. Hutchinson 3 : — ‘‘The 
patient, a white man, had syphilis, and developed frambesiae. The 
latter disappeared on his return to England, and later, after he 
“ again went to Fiji, he suffered with tertiaries.” 
In all these cases it is, of course, impossible to prove that the 
persons from whom the disease was contracted had syphilis of 
ordinary type. 
There still remains one fact which forms the strongest objection 
to the identification of yaws with syphilis. This, so far as I know, 
has not been referred to by previous writers, and it remains for one, 
who for the last twelve years has been holding and teaching the 
syphilis theory, to raise what seems to be the strongest argument 
against that theory. Although it may be true that the nature of the 
dark skin predisposes to the frambesial eruption, it is indisputable 
that yaws is seen breeding true on white persons. In a yawsy 
village the poor whites get the disease and have the eruption just as 
certainly as do the blacks. On a white skin the frambesiae are less 
developed. The papilloma is not so prominent, and the crust less 
irm. That is, the yaws is flatter, moister, and usually smaller than 
a black patient, and it is associated with more of other syphilides, 
psoriasis, large moist papules, ecthyma, &c. It is a condyloma 
1. Nicholls’ Report, p. 168. 
2. Nicholls’ Report, p. 166. 
3. Fasciculus, p. 19. 
