[ 10 ] 



Presents. Donors. 



ANONYMOUS (continued.) 



Vilain XIV. (H.) Memoire sur les Chaussees Vicinales. 8vo. Bruxelles The Author. 



1829. 

 Vilain XIV. (H.) Coup-d'oeil sur les Inondations des Flandres. Svo. The Author. 



Bruxelles \S^2. 

 AULDJO (J.) Sketches of Vesuvius, with short Accounts of its principal The Author. 



Eruptions. Svo. Lond. 1833. 

 BABBAGE (C.) On the Economy of Machinery and Manufactures. 8vo. The Author. 



Lond. 1832. 

 BELL (T.) A Monograph of the Testudinata, Nos. 1, 2, and 3. Folio. Lond. The Author. 

 BESSEL (F. W.) Astronomische Beobachtungen auf der Koniglichen Uni- The Author. 



versitats-Sternwarte zu Konigsberg. Pt. 15. Folio. Konigsberg 1831. 

 Versuche iiber die Kraft mit welcher die Erde Korper von . 



verschiedene BeschafFenheit anzieht. 4to. Berlin 1832. 

 BILLBERG (G. J.) Aminelse-tal ofoer C. P. Thunberg. 8vo. Stockholm The Author. 



1832. 

 BIOT (J. B.) Memoire sur la Polarization Circulaire. 4to. Paris. The Author. 



BLAND (M.) Problems in the different Branches of Philosophy, adapted to The Author. 



the Course of Reading pursued in the University of Cambridge. Svo. Lond. 



1830. 

 Algebraical Problems ; to which is added an Appendix. Svo. 



Cambridge 1832. 

 BOUE (A.) Resume des Progres de la Geologic pendant Tannic 1832. Svo. The Author. 



Paris 1833. 

 BREWSTER (Sir D.) Account of a new System of Illumination for Light- The Author. 



houses, 4to. Edinb. 1827. 

 ' — — — Account of remarkable Peculiarity in the Structure of • 



Glauberite. 4to. Edinb. 1829. 



Account of a remarkable Structure in Apophyllite. 



4to. Edinb. 1822. 



Description of a Monochromatic Lamp for Microsco- 

 pical Purposes. 4to. Edinb. 1822. 



Description of a new Darkening Glass for Solar Obser- 

 vation. 4to. Edinb. 1815. 



On a new Analysis of Solar Light, indicating three 



primary Colours. 4to. Edinb. 1831. 



On a new Species of Coloured Fringes, produced by 



Reflexion. 4to. Edinb. 1832. 



On the Optical Properties of Sulphuret of Carbon, 



Carbonate of Barytes, and Nitrate of Potash. 4to. Edinb. 1814. 



On the Action of Transparent Bodies upon the differ- 



ently coloured Rays of Light. 4to. Edinb. 1815. 



On the Optical Properties of Muriate of Soda, Fluate 



of Lime, and the Diamond. 4to. Edinb. 1816. . 



■ On the Refractive Powers of two new Fluids in Mi- 



nerals. 4to. Edinb. 1826. 



. Results of the Thermometrical Observations made at 



Leith Fort during 1824 and 1825. 4to. Edinb. 1826. 



Account of the native Hydrate of Magnesia discovered 



by Dr. Hibbert in Shetland. 4to. Edinb. 1821. 



Description of Hopeite, a new Mineral from Alten- 



burg. 4to. Edinb. 1823. 



