~ * ? iM 5 
ACKNOWLEDGMENTS TO CORRESPONDENTS, FRIENDS 
AND aerane ERS. 
cere ta 
-» Which are kindly presenvedidgeid in cases, where such no- 
ioe, ade or commendatory, would be appropriate ; for it is often 
equally impossible to command the time requisite to frame them, or 
even to read the works; still, judicious remarks, from other hands, 
would usually find both aeceptance and insertion. 
In public, it is rarely proper to advert to’ personal concerns; to 
excuse, for instance, any apparent neglect of courtesy, by pleading 
the ugitermiiting pressure of labor, and the numerous calls of our 
fellow-men for information, advice, or assistance, in lines of duty, 
with which they presume us to be acquainted, cee 
The apology, implied i in this remark, is drawn from us, thatwe may 
% 
- 
thors, edit itors, publishers, and other * 
is still our endeavor to reply to all letters which appear to require a « . 
answer ; although, as’a substitute, many acknowledgments are made , 
in these pages: which may sometimes be, in part, retrospective.— 
Vd: ed 
SCIENCE.—FOREIGN. 
. Societé Royale des Antiques du Nord. appait des Séances 
Annuelles de 1838 et 1839. From the Society, and from Dr. J.. 
Po 
rter. 
The Mineral apes a the South of Ireland: by Thos. Weaver, 
Esq. From the Autho | 
“a ae Bowlder sete. by Charles sa: ae From the ° 
oe 
Aut 
4 Lael Nos. 334 and 342. ? 
Experimental Researches in Electricity ; by Sir M. Foraday, i 
15th, 16th, and 1] 17th series, and Index from 1 to 14, From the 
Author, 
Extrait des Statuts Constitutifs de la Societé des Kibet ice di 
— with a report of tHe anniversary meeting of 1888, 1839, and 
* i 
é 
ee 
. 
