[47^-3 
IX. An Account of a Book, 
Recherches fur h Nature <9» U Querijon des 
Cancers. Par Mr Defhayes GeuJron DcSleur 
en Medicine de I' Vtiiverfite de MonpeUier^ 
-■■A A Paris 1 70 o . 8 o. 
THe Ancients in their D^vifiotis of Tumours, 
confounded Caftcers with alt other hard and 
painful Swellings. Tb^fe they imagin d to pro- 
ceed from an Aduft Atribitariai^^ Blbo^^^ w 
on they founded on their Extef lour Appearances, their 
Black or Livid Colour, and Burning Acrimony. The 
Moderns changing the terms, derive them from a cer- 
tain Acid Ferment, whicjhftft coagulatels ^ in 
the Glands, and after coffSd^^- arid ulcerates the part. 
Thefe accounts do not coAttntMr Oeudro^^ who be- 
lieves his Obfervatioiis h^vd fnrhiftied him with a mor^ 
fatisfadory Idea ot the Forniation of Cancers^ their dif- 
ference from fchirrous, fcropM like 
Tumours, and. a more furfc P^ogrioftic^^^^ 
There is fo great a diver fity ip^CancerS, he pretends 
it is "impoffible to give one to 
fhall agree to all. Some have a round, unequal, livid, 
painful hardnefs 5 others are flat without lividity, and 
Ibmetimes indolent. This variety proceeds chiefly from 
their rife and progrefs, and the ftrufture of the parts in 
which they are feated, as the Breaft, Womb, Mouth, 
Nofe, Eyes, Ears 3 all which differ in their appear- 
ances. 
In 
