xxx additions to the librae y. 



Titles. Dojtobs. 



Plateau, (FelLv). Eecherches experimentales sur la position du 

 centre de Gravite chez les Insects. Svo. Geneve, 1872. 



The Atjthoe, 



Plinii Secundi. Naturalis Historia. Tom. 1-3. Svo. Lugduni 

 Batav.. 1668-69. G. Bexthatx, Esq., Pres. L.S. 



Potts, T. H. Notes on the Birds of New Zealand. Part 2. (Trans. 

 N. Z. Instit., Yol. 3., 1S70.) Svo. The ArraoE. 



Pringsheim, N., Ed. Jahrb. fiir Wiss. Bot. See Joxumals. 



Quetelet, Ad. Notice snr Sir John F. "W. Herschel. Svo. 



The AriHOS? 



Reeve, LoveTl. Conchologia Iconica. Parts 288-93. 4to. London, 



1871. Pttrchased. 

 Regel, E. Eevisio specierntn Cratsegorum, Draeaenarum, Horke- 



liarum, Laricum, et Azaleariim. Svo. 



. Animadversiones de plantis vivis nonmillis Horti Bot. Imp. 



Petropolitani. Svo. The AriHOK. 



Regel, E. et Herder, F. ab. Supplementum 2 ad enumera- 

 tionem Plantamm in regionihus Cis- et TransiHensihus a cl. 

 Seminovio anno 18.57 coUectariim. Ease. 1. Svo. Moskau, 

 1870. M. Regel. 



Reichard, Joan. Jac. Elora Moenofrancofurtana. Partes 2. Svo. 

 Erancof. ad Moeniim, 1772-78. Poichasei). 



Riley, C Y. Third Annual Eeport, on the Noxious, Beneficial, 

 and other Insects of the State of Missouri. Svo. Jefferson 

 City, Mo., 1871. The ArrnoE. 



Ross, Alex. M. Catalogue of Birds, Insects, and Squirrels col- 

 lected in the vicinity of Toronto, Canada. Svo. Toronto, 1871. 



The ArxHOB. 



Rossbach, Dr. 21. -J. Die Bhythmisehen Be^-egungserschei- 

 nungen der einfachsten Organismen, und ihr Yerhalten gegen 

 Physikalische Agentien und Arzneimittel. Svo. "Wurzburg, 



1872. The AnnoE ? 

 Roth, Alh. GuiJ. Novae Plantamm species, praesertim Indise Ori- 



entalis, ex coU. Dr. Benj. Heynii. Svo. Halberstadii, 1821. 



Png CHASED. 



Salvin, Oshert, Ed. Ibis. See Journals. 



San Giorgio, La Contessa di. Catalogo poliglotto deUe piante. 

 Svo. Firenze, 1870, G. Bektham, Esq., Pres. L. S. 



