(loip) 
have tcucht orbeeatoucht b.y Epileptical perfons :0f a Stone 
generated in {.h^Tongnc&c. 
Having inqna^ed of rn obferving Correfpojident , lii'Inj in 
theCouncry^ Whether he had m-^c with any fach I iftancesas 
was mentioned aboi^e , of a Vivifarous Hen, he returned this 
Anfwer, thn Wackm in Norfolk ^ 2, or 3. yeirs fince, 
there was a Ken , which bigg "^ith Eggs, upon fomeaccounc 
couidnot lay , but afterttime dyed 5 and then beingo )ened5 
there was found in the Ovarium a perfcd chick, which was 
offered to a Phyficiati in thoie parts to prefer ve, 
III. Otr oNI S TjtC HE Nil HIPPOCRATES 
c HTM ic vS. Ycnaiism 12°, 
r A HJ this Author, though printed 2. or 3. years agoe* 
x \ came not to our knowledge, till now: in this 
Traft, endcavosrs to jtiftify the Antients, blamed by 
Zwelfer mhis Phdrmacofh^a Augufldna^o'c haying comniitted 
feverall faults in the preparation of a certain SaltciVii 7heriacal 
becaufe extraded out of Viper s and divers other Ingredients com- 
pofing Theriack. And having done this 5 he thence takes oc» 
cafion to treat of the nature of Salts^ efpecially of thtAlca" 
ly sand Acids y which he , with fome other Chymifts, holds 
to be (he firft Principles of all mixt Bodies, And being per- 
fsvaded, that ^fz/^/^^rr^f^/ was alfo of this opinion, and a great 
Chymifttoo, he entitles this Book ffippccrates Chjmicus. 
Though the Silt properly fignities that Silt which is 
drawn out of the Aflies of an ^gypim hei b , named Kd) 5 yet 
Chymiis take it in a larger fenfe ^ and under ftand by that word 
all the Salts, which, like that of the faid herb, draw and im- 
pregnate themfelvcs with Acid ones. To this Salt our Author 
refers almoftallthe Operations of Nature , and having exami- 
ned its proprieties , rilatcs divers not Un-curious Obfervations 
concerning it. 
Toy Example*. That nothing pierces fomuchas v^/^-^/jV^and 
that therefore H^ture hath ftored the Sweatof Animals fo plen- 
tifully with it. For, that the ordiare, which continually ga- 
thers on the skin 3 would foon flop the pores of it? if the 
C c €cc 2 fweat 
