additions to the librakt. iv 



Titles. Donoes. 



Weld (C. R.) Descriptive Catalogue of tlie Portraits in the pos- 

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Willdenow (C. L.) Species Plantarum (interleaved and bound in 

 16 vols. ; with notes by the late Mr. E. Brown). Berolini, 

 1797-1805, 8vo. Purchased. 



"Wolff (C. F.) Theoria Grenerationis, ed. nova. Halse ad Salam, 

 1774, 8vo. Purchased. 



Yarrell (W.) Supplement to the History of British Birds. 

 London, 1845, 8vo. 



Second supplement to ditto. (=lst suppl. to 2nd edition). 



lb. 1856, 8vo. 



Second supplement to the 1st edition of the History of 



British Pishes, edited by Sir John Richardson, C.B. Ih. 1860, 

 8vo. John Van Voorst, Esq., P.L.S. 



Yates (J.) Report of the International Association for obtaining 

 a Decimal System of Measures, &c. London, 1859, 8vo. 



The Author. 



Yates (J.) and Barrett (A.) Improvements in Arithmetic ; with a 

 vindication of the Decimal Principle. London, 1860, 8vo. 



The Authors. 



