( 733 ) Numb. zoo. 
PHILOSOPHICAL 
TRANSACTIONS. 
For the Month of May, 1693. 
The CONTENTS. 
J. *~T* HE Method ^ Manner and Order of the Tranf 
X mutation of Copper into Braft, &c. by T as 
Povey, S. R. S. II. Two Letters concerning fever al 
Copper Mines, in Anfwer to fome Queries propojed by 
Dr. Martin Lifter, S.R.S. who communicated them to the 
Publifher. III. Edvardi Lvidii apud Oxonienfes Cimeli- 
archse Aflimoliani'ad ClariflV.D. Chriftopkorum Hemmer 
Eptfiola, in qu£ agit de lapidibus aliquo*- perpetua figuri 
donatis^quos nuperis annis in Oxonienfi & vicinisagris ad- 
invenit. IV. The Ext rati of a Letter from Mr, Antho- 
ny Van Leeuwenhoek, S. R. S. to the Royal Society, con- 
taining feveral curious Obfervations on Native Cinnabar, 
and the firing of Gunpowder, with its Contents, and quan- 
tity of Air produced by the Explofion. V. The Defcrip- 
tion of the American Tomineius, or Humming Bird, 
communicated by Dr. Nehemiah Grew, S. R S. VI. An 
Account of Books, i. Horti Indici Malabarici, Pars 
Septima, Odava, & Nona, with fome Remarks upon 
B b them 3 
