Appendix No. 1. xi Observatory, The : A Monthly Record of Astronomy. Vols, v., vi. 8vo. London, 1882—83. [From the Editor.] Ormerod, Miss. Guide to Methods of Insect Life; and Prevention and Remedy of Insect Ravages. 8vo. London, 1884. [From the Authoress.] Pritchard, Andrew. Notes on Aquatic Microscopic Subjects of Natural History. 12mo. London, 1854. [From Mrs. Yeates.] Ray, John. Historia Insectorum. Opus Posthumum Jussu Regiae Societatis Londinensis Editum. Small 4to. London, 1710. [From Mr. E. A. Fitch.] Royal Microscopical Society. Journal. Second series. Vol. iii. 8vo. London, 1883. (Two copies.) [From Mr. W. Eminens and the Society.] Science Gossip. Vol. xix. 8vo. London, 1883, [From Miss Cole.] Shropshire Archaeological and Natural History Society. Transactions. Vols, v., vi. 8vo. Shrewsbury, 1882—83. [From the Society.] Somersetshire Archaeological and Natural History Society. Pro- ceedings. New series. Vol. viii. 8vo. Taunton, 1883. [From the Society.] Swainson, William. Flycatchers. (Nat. Lib., Ornithology, vol. x.) 12mo. Edinburgh, 1838. [From Mr. W. H. Gomm.] Yorkshire Geological and Polytechnic Society. Proceedings. Vols, vi., vii. 8vo. Leeds, 1879—82. [From the Society.] Zoologist. Third series. Vol. vii. 8vo. London, 1883. [From Mr. R. L. Barnes.] Pamphlets. Vol. v. Zoology. 8vo. Contents: Anon. Birds of the Montrose District. Montrose, 1881. Cole, W. On a Parasite of Humble Bees. (Journ. Quekett Micros. Club, 1875.) Fitch, E. A. The Galls of Essex. (Trans. Essex Field Club, 1882). Gloyne, C. P. On the Geographical Distribution of the Terrestrial Mollusca. (Quart. Journ. Conchol., 1877.) Harting, J. E. Extinct British Quadrupeds. (Zool., 1881.) ----------. Forest Animals. (Trans. Essex Field Club, 1881.) ----------. Hertfordshire Deer Parks. (Trans. Herts. Nat. Hist. Soc, 1883.) Kent, W. S. Infusoria: What are they? Their Collection and Investigation. (Trans. Essex Field Club, 1882.) Laver, H. On the Land and Fresh-water Mollusca of the District around Colchester. (Ib.) ----------. The Mammalia of Essex. (Ib.) Meldola, E. Entomological Notes bearing on Evolution. (Ann. & Mag. Nat. Hist., 1878.) ----------. The Developmental Characters of the Larva; of the Noctua as determining the Position of that Group. (Trans. Essex Field Club, 1881.) Newport, G. On the Anatomy, Habits and Economy of Athalia centifoliae. London, 1838. Ormerod', E. A. A Lecture on Injurious Insects. Cirencester, 1881. _______. On " Cane-borers." (Proc. Ent. Soc, 1880.) ----------. On the Cutaneous Exudation of Triton cristatus. (Journ. Linn. Soc, Zool.)