ACKNOWLEDGMENTS TO CORRESPONDENTS, FRIENDS 

 AND STRANGERS. 



Remarks. — This method of acknowledgment has been adopt- 

 ed, because it is not always practicable to write letters, where 

 they might be reasonably expected ; and still more difficult is it 

 to prepare and insert in this Journal, notices of all the books, pamph- 

 lets, Sic, which are kindly presented, even in cases, where such no- 

 tices, critical 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 acceptance and insertion. 



SCIENCE. FOREIGN. 



Arsberattelse om Framstegen i Fysik och Kemi, afgifven den 31 

 Mars, 1838, af Jac. Berzelius, K. V. Acad. Sec. Stockholm, 



1838. 8vo. 



Arsberattelse om Botaniska Arbeten och Upplackter for ar 1837, 

 afgiven den 31 Mars, 1838, af Job. Em. Wikstrom. Stockholm, 



1839. 8vo. 



Arsberattelse om Technologiens framsteg, afgiven den .31 Mars, 

 1838, af G. E. Pasch. Stockholm, 1839. 8vo. 



Kongl. Vetenskaps-Academiens Handlingar for ar 1837 and 1838. 

 Stockholm, 1839. 8vo. These four last from M. Berzelius. 



Tal om Juridisk Statistik och gneriderne for Lagstiftrimgen, Hal- 

 let uti Kongl. Vetenskaps-Academiens, den 8 April, 1840, af Grefve 

 M. Rosenblad. Stockholm, 1840. 



Tal om R. Seraphimer Ordeno Lazarettet i Stockholm, Hallet, 

 1 Kongl. Vetenskaps-Academiens vid Praesidii Nedlaggande den 7 

 April, 1838, af Dr. C. J. Ekstromer. Stockholm, 1849. 



Three Lectures on Agriculture, delivered at Oxford in 1840 and 

 1841 ; by Charles Daubeny, M. D., F. R. S., &,c. Oxford, 1841. 

 8vo. From the Author. 



Proceedings of the Royal Irish Academy, No. 26. From Prof. 

 Bache. 



On the Geological Structure of the northern and central regions 

 of Russia in Europe ; by Roderick I. Murchison, F. R. S. and 

 E. De Verneuil. London. From the Author. Three copies. 



Notice of two Geological Models and Sections forming a part of 

 the Mineral Basin of South Wales ; by R. C. Taylor, Esq. ; from 

 the Geological Society's Transactions, 1830. From the Author. 

 May, 1841. 



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