=Bird Lore=, an Ill.u.s.trated Journal about Birds. Macmillan Co.

$1.00 a year.

=Cambridge Natural History=, Vols. V (Peripatus), $4.00, VI (Insects), $3.50. Macmillan Co.

=Chapman, Frank.= Handbook of the Birds of Eastern North America.

1899. D. Appleton & Co. $3.00.

=Comstock, J. H.= Manual for the Study of Insects. 1897, Comstock Publishing Co. $3.75.

---- Insect Life. 1901, D. Appleton & Co. $1.50.

---- =and Kellogg, V. L.= Elements of Insect Anatomy. 1901, Comstock Publishing Co. $1.00.

=Cooke, W. W.= Bird Migration in the Mississippi Valley.

Distributed by the Division of Biological Survey, U. S. Dept.

Agric.

=Cowan, T. W.= Natural History of the Honey-bee. 1890, London: Houlston. 1s. 6d.

=Coues, Elliott.= Key to North American Birds. 1890, Estes and Lauriat. $7.50.

=Darwin, Chas.= The Formation of Vegetable Mold through the action of Worms. D. Appleton & Co. $1.50.

---- Origin of Species. 1896, Caldwell. $0.75.

---- The Structure and Distribution of Coral Reefs. D. Appleton & Co. $2.00.

---- Plants and Animals under Domestication. D. Appleton & Co.

=Davie, Oliver.= Methods in the Art of Taxidermy. 1894, Oliver Davie & Co., Columbus, O. $10 net.

=Gage, S. H.= Life History of the Toad. Teacher's Leaflets No. 9, April, 1898, prepared by College of Agriculture, Cornell University, Ithaca, N. Y.

=Heilprin, A.= The Distribution of Animals. 1886, D. Appleton & Co. $2.00.

=Hodge, C. F.= The Common Toad. Nature Study Leaflet, Biology Series No. 1. 1898, published by C. H. Hodge, Worcester, Ma.s.s.

=Holland, W. J.= The b.u.t.terfly Book. 1899, Doubleday and McClure Co. $3.00.

=Hornaday, W. T.= Taxidermy and Zoological Collecting. 1897, Chas. Scribner's Sons. $2.50 net.

=Howell, W. H.= Dissection of the Dog. 1889, Henry Holt & Co.

$1.00.

=Huxley, T. H.= The Crayfish: an introduction to the Study of Zoology. D. Appleton & Co. $1.75.

=Jordan, D. S.= Manual of Vertebrate Animals of the Northern United States, 8th ed. 1899. A. C. McClurg & Co. $2.50.

---- =and Evermann, B. W.= Fishes of North and Middle America, 4 vols. 1898-1900, Distributed by U. S. National Museum.

---- =and Kellogg, V. L.= Animal Life. 1900, D. Appleton & Co.

$1.20.

=Lubbock, John.= Ants, Bees, and Wasps. 1882. D. Appleton & Co.

$2.00.

=Marshall, H. M., and Hurst, C. H.= Practical Biology, 5th ed. G.

P. Putnam's Sons. $3.50.

=Martin, H. W., and Moale, W. A.= Handbook of Vertebrate Dissection, 3 parts. 1881, Macmillan Co.

Part 1. How to dissect a Chelonian (red-bellied slider terrapin); Part 2. How to dissect a bird (pigeon); Part 3. How to dissect a rodent (rat).

=McCook, Henry.= American Spiders and their Spinning Work, 3 vols. 1889-1893, H. C. McCook, Phila., Pa. $30.00.

=Miall, L. C.= The Natural History of Aquatic Insects. 1895, Macmillan Co. $1.75.

=Parker, T. J.= A Course of Instruction in Zootomy. 1884, Macmillan Co. $2.25.

---- Lessons in Elementary Biology. 1897, Macmillan Co. $2.65.

---- =and Haswell, W. A.= Textbook of Zoology, 2 vols. 1897, Macmillan Co. $9.00.

=Peckham, George W. and E. J.= On the Instincts and Habits of the Solitary Wasps. 1898, sold by Des Forges & Co., Milwaukee, Wis.

$2.00.

=Potts, E.= Fresh-water Sponges. 1887, Phil. Acad. of Sciences.

=Poulton, E. B.= The Colors of Animals. 1890, D. Appleton & Co.

$1.75.

=Reighard, J. E., and Jennings, H. S.= The Anatomy of the Cat.

1901, Henry Holt & Co. $4.00.

=Ridgway, R.= Directions for Collecting Birds. Distributed by U.

S. National Museum.

=Riverside Natural History=, 6 vols. Houghton, Mifflin & Co.

$30.00.

=Romanes, Geo.= Darwin and After Darwin, I. 1895-97, Open Court Publishing Co.

=Scudder, S. H.= The Life of a b.u.t.terfly. 1893, Henry Holt & Co.

$1.00.

=Van Beneden, E.= Animal Parasites and Messmates. 1876, D.

Appleton & Co. $1.50.

=Wallace, A. R.= The Geographical Distribution of Animals. 1876, Harper & Bros. $10.00.