£ s. a. 

 Bibliographia Zoologise et Geologiae, by Prof. Agassiz, Vols. I, II, III, and IV 



(the set) . . . . . . . . .100 



A Monograph of the Sub-class Cirripedia, by C. Darwin, Vols. I and II (the 



set) . . . . . . . . . .100 



A History of the Spiders of Great Britain and Ireland, by J. Blackwall, Parts I and II 



(the set) . . . . . . . . .220 



(Part I, one guinea.) 



A Monograph of the British Nudibranchiate Mollusca, by Messrs. Alder and Hancock, 



Parts I, II, III, IV, V, VI, and VII (the set) * . . .660 



(Parts V, VI, and VII may be obtained at one guinea each.) 



The Reptiles of British India, by Dr. Gunther, issued for the year 1863 . ,110 



A Monograph of the British Spongiadae, by Dr. Bowerbank, Vol. I, issued for the 



year 1864 . . . . . . . . .110 



The British Hemiptera Heteroptera, by Messrs. Douglas and Scott. A Mono- 

 graph of the British Spongiadae, by Dr. Bowerbank, Vol. II, issued for the 

 year 1865 (the set) . . . . . . , .110 



The Miscellaneous Botanical Works of Robert Brown, Vol. I. Recent Memoirs on 

 the Cetacea, by Professors Eschricht, Reinhardt, and Lilljeborg, translated by 

 W. H. Flower. Nitzch's Pterylography, issued for the year 1866 (the set) .110 



The Miscellaneous Botanical Works of Robert Brown, Vol. II. The Shoulder-girdle 



and the Sternum, by W. K. Parker, issued for the year 1867 (the set) . .110 



The Miscellaneous Botanical Works of Robert Brown, Vol. III. Vegetable Teratology, 



by Dr. Masters, issued for the year 1868 (the set) . . . .110 



A Monograph of the Gymnoblastic Hydroids, by Dr. Allman, Part I, issued for the 



year 1869 ..... . . . .110 



A Monograph of the Gymnoblastic Hydroids, by Dr. Allman, Part II, issued for the 



year 1870 110 



A Monograph of the Collembola and Thysanura, by Sir J. Lubbock, Bart., M.P., 



issued for the year 1871 . . . . . . .110 



A Monograph of the British Annelids, Part I, the Nemerteans, by Dr. Mcintosh, 



issued for the year 1872 . . . . . . .110 



