2yy 



Voyage dans la Russie Meridionale et la Crimee ; par M. de 

 DemidotF (Partie Scieiitifique). Livraison 5 en 8vo, et 

 Planches en fol By the Author. 



Nova Acta Physico-Medica Academiae Cesareae Leopoldino-Caro- 

 linae Nature Curiosorum. Tome xix. Part 1 — By the Aca- 

 demy. 



The Dedication of the Sanctuary ; a Poem. By James Kennedy 

 Bailie, M. D., M. R. I. A.— By the Author. 



Observations on the Application of the Catadioptric Zones to 

 Lights of the First Order in the system of Fresnel ; with 

 Tables of the Elemests of Zones adapted to these Lights. 

 By Alan Stevenson, LL. B., F. R. S. E — By the Author. 



The Journal of the Royal Geographical Society of London. 

 Vol. X. Part 1 — By the Society. 



Collection de Memoires et de Relations sur I'Histoire Ancienne 

 du Canada. — By the Lit. and Hist. Soc. of Quebec. 



The Quarterly Journal of Agriculture ; and the Prize Essays and 

 Transactions of the Highland and Agricultural Society of 

 Scotland. No. 48, for March 1840 — By the Society. 



The following Communications were read : — 



1. Notice regarding the Growth of Plants in close Glazed 



Cases. By Allan Maconochie, Esq. 



2. Results of Additional Experiments on Terrestrial Magne- 



tism. By Professor Forbes. 



" The author commences with some remarks on the degree of 

 accuracy attainable by portable magnetic apparatus, and parti- 

 cularly by the use of dipping needles of moderate dimensions. A 

 six-inch needle by Robinson of London, belonging to the Society, 

 together with the Hansteen apparatus for horizontal intensity, 

 were the chief instruments employed by him in a tour through 

 Germany in 1837, in which (though magnetic investigations did 

 not form his primary object), he endeavoured to obtain the ap- 

 proximate value of the elements of dip and intensity for several 

 important stations, an^ also to carry out into the Eastern Alps 

 the investigations he had already, in 1832, conducted in Switzer- 

 land. 



