403 



Lcucanthemum ; and on three proximate principles which 

 they contain. Part I. By Dr Hope. 



The Abstract of this Paper has been postponed till the re- 

 maining part of it shall be communicated. 



2. On the Law of Visible Position in Single and Binocular 

 Vision, and on the Representation of Solid Figures by 

 the union of two dissimilar plane figures on the Retinae. 

 By Sir David Brewster, K.H. Part I. 



The Abstract of this Paper also has been postponed till the 

 whole shall have been read before the Society. 



The following Donations of Books to the Society's Library 

 were announced. 



Proceedings of the London Electrical Society. Part 7. — By the 



Society. 

 De Fide Uranometrise Bayeri Dissertatio Academica. Scripsit D. 



F. G. A. Argelandex-. — By the Author. 

 Memoirs of the Royal Astronomical Society. Vol. XII. — By the 



Society. 

 Philosophical Transactions of the Royal Society of London. 1842. 



Part ii. — By the Society. 

 Kongl. Vetenskaps-Academiens Handlingar, for Ai-en 1839-40. 

 Arsberattelse om framstegen i Fysik och Kemi Afgiven den 31 



Mars 1839 and 31 Mars 1840. Af Jac. Berzelius. 

 Arsberattelse om Technologiens Framsteg, Afgiven den 31 Mars 



1839 and 31 Mars 1840. Af G. E. Pasch. 

 Arsberattelser om nyare Zoologiska Arbeten och Upptackter. Af- 



gUne for Aren 1837-40. Af C. J. Sundewall.— % the Royal 



Swedish Academy. 



Donation to Museum — 

 Three Specimens of Salmon, shewing the rapid growth (on descend- 

 ing to the sea) of the Sniolt to the state of Grilse, and of the lat- 

 ter to the adult condition. — By Mr Andrew Yotmcf, Suthcr- 

 landshirc. 



