c m y 
he affirms to be an Excrementitious Succus, by Nature 
fecreted in its proper Fo/Iicule near the Anus of an Ank 
mal of the Dog-kind, and not the Sperm, as fbme have 
aflerted. Caftor he proves to be the Scent- hags adjoyn- 
ing to the Intejlinum Return, and not the Tejlicles of 
the Beaver, as lome afiert. 
In the Fourth and laft Book our Author takes no- 
tice, that the Sal Armoniac of the Shops is a factious Salt 
made of Human Vrine^ Soot, and common Salt, and is 
not that of the Ancients, which Pliny and others affirm 
to be found among the Sands of Lyhia. And laftly , 
Obferves that Mumia is of four forts ; all which he 
doth demonftrate. And here I ftiall finifh my Account, 
recommending to thofe which defire further Satisfa&ion 
in the Materia Medica the Book it felf, which is of ex- 
cellent Ufe to all Pbyjicians, Pbilofopbers, Apothecaries* 
Chirurgions, and Drugtfers. 
Advertifements. 
TH E Reader is defired to Corredt a Miftake in 
Philofophical Tranfaftions, Numb. 102. p. 824, 
The Truffles there mentioned being difcovered at Rujbton 
in Northampton-Jbire^ by the Learned Phy fician Dr. H*fo 
ton of Harborougb in Leicefter-Jbire. 
Lihri quid am novi qui pr oft ant apud S. Smith, & B» 
Walford , ad inftgnia Principu in Cosmiterio D. Pauli, 
Afta Eruditorum ab Anno 1681. ad 1691. inclujive cum 
tredecem Supplimentis. 
Indices Generates Attorum & Rerum primi Aftorum E~ 
ruditorum qua Lipfiae pullicantur Decennii nec non Sup~ 
plimentorum Tomi primi, 
