166 Scientific Intelligence. (Fes. 
‘The Class invites philosophers to undertake these two sets of ex- 
periments, which may give a new and important extension to the 
theory of electricity. ; 
General Conditions—Every person, the Members of the In- 
stitute excepted, may become a candidate. No treatise sent with a 
view to a prize ought to contain the name of the author, but only a 
paragraph or device. ‘The author may, if he chooses, send a sepa- 
rate and sealed letter, containing, besides the paragraph and device, 
the name and address of the author, which will not be opened 
unless the piece shall gain the prize. 
The papers intended for the prizes may be sent to the Secretary 
of the Institute, paying the carriage of the parcels containing them. 
The clerks in the Secretary's office will give receipts. ‘They may 
be sent likewise (carriage paid) to the Perpetual Secretary of the 
Class. 
The candidates are informed that the Institute will not return any 
of the works sent for the prizes; but the authors shall be at liberty 
to take copies, if they have occasion for them. 
The Administrative Commission of the Institute will deliver the 
medal to the person who presents the receipt ; and in case there be 
no receipt, the medal will be given only to the author himself, or 
to his order. 
Of these different conditions, the first and the last only apply to 
the prize of galvanism, and to the medal of Lalande, which may 
be given to printed works. 
Articte XV. 
Scientific Books in hand, or in the Press. 
Mr. T. Heming, of Magdalene Hall, Oxford, has announced for 
publication a Map of Scriptural and Classical Geography, accompanied 
by an Historical and Descriptive Volume, in demy 8vo., wherein the 
Origin of Nations is particularly examined and discussed ; intended to 
facilitate a knowledge of the progressive Colonization of the Earth, 
and to establish more clearly the Foundation of Universal and Choro- 
graphical History. 
Mr. Wm. Phillips has now in the Press, and will publish in the 
course of the ensuing month, an Elementary Introduction to the 
Knowledge of Mineralogy and of Minerals, including some Account 
of the Places at which, and of the Circumstances under which, Mi- 
nerals are found; and Explanations of the Terms commonly used in 
Mineralogical Description. It will be comprised in a small yolume in 
duodecimo, and is designed for the Use of the Student. 
Dr. Granville has in the Press a Translation of that part of Orfila’s 
General Toxicology which more particularly relates to Poisons de- 
rived from the Vegetable and Animal Kingdoms. The subject having 
formed a very important part of Dr. Granville’s scientific pursuits, he 
has been enabled to accompany his translation with copious Notes and 
Additions. 
