HENRY HOLT &* CO.'S WORKS ON SCIENCE. 



Allen's Laboratory Exercises in Elementary Physics. By Charles R. 

 Allen, Instructor in the New Bedford, Mass., High School. 

 Pupil 's Edition ; x + 209 pp. l2mo. 80c, net. Teachers' Edi- 

 tion; $1.00, net. 



Arthur, Barnes, and Coulter's Handbook of Plant Dissection. By J. C. 



Arthur, Professor in Purdue Univ., C. R. Barnes, Professor 

 in Univ. of Wisconsin, and John M. Coulter, President 

 of Lake Forest University, xi + 256 pp. i2mo. % 1.20, net. 



Atkinson's Elementary Botany. By Geo. F. Atkinson, Professor in 

 Cornell. For beginners. Fully illustrated. 



Barker's Physics. See American Science Series. 

 Barnes' Plant Life. By C. R. Barnes, Professor in University of 

 Chicago. Illustrated, x + 428 pp. i2mo. 



Beal's Grasses of North America. For Farmers and Students. By 

 W. J. Beal, Professor in the Michigan Agricultural College. 

 8vo. Copiously Ill'd. Vol. I., 457 pp. $2.50, net. Vol. II., 

 707 pp. $5, net. 



Bessey's Botanies. See American Science Series. 



Black and Carter's Natural History Lessons. By George Ashton 

 Black, Ph.D., and Kathleen Carter. (For very young 

 pupils.) x + 98 pp. i2mo. 50c, net. 



Bumpus's Laboratory Course in Invertebrate Zoology. By H. C. Bumfus, 

 Professor in Brown University. Revised. 157 pp. i2mo. 

 $1, net. 



Cairns's [Quantitative Chemical Analysis. By Fred'k A. Cairns. Re- 

 vised and edited by Dr. E. Waller. 417 pp. 8vo. $2, net. 



Champlin's Young Folks' Astronomy. By John D. Champlin, Jr., 

 Editor of Champlin' s Young Folks' Cyclopedias. Illustrated, 

 vi + 236 pp. iomo. 48c, net. 



Congdon's Qualitative Analysis. By Ernest A. Congdon, Professor 

 in Drexel Institute. 64 pp. Interleaved. 8vo. 60c, net. 



Crozier's Dictionary of Botanical Terms. 202 pp. 8vo. $2.40, net. 



Hackel's The True Grasses. Translated from " Die naturlichen 

 Pfianzenfamilien " by F. Lamson-Scribner and Effie A. 

 Southworth. v + 228 pp. 8vo. $1.50. 



Hall's First Lessons in Experimental Physics. For young beginners, 

 with quantitative work for pupils and lecture-table experiments 

 for teachers. By Edwin H. Hall, Assistant Professor in Har- 

 vard College, viii + 120 pp. i2mo. 65c, net. 



Hall and Bergen's Text-book of Physics. By Edwin H. Hall, Assist- 

 ant Professor of Physics in Harvard College, and Joseph Y. 

 Bergen, Jr., Junior Master in the English High School, Bos- 

 ton. Greatly enlarged edition. 596 pp. i2mo. $1.25, net. 



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