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DANA'S GEOLOGICAL STORY BRIEFLY TOLD. An introduction to Geology for the general reader and for 

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DANA'S TEXT BOOK. Revised Edition. A Text-Book of Geology, designed for Schools and Academies. By James D. 

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DANA'S MANUAL OP GEOLOGY. Third and Revised Edition, issued in January, 1880. Treating of the Principles of the 

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 By James D. Dana, LL. D., Silliman Professor of Geology and Natural History, Yale College. Illustrated by a Chart of the 

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GRAY'S HOW PLANTS BEHAVE, HOW THEY MOVE, CLIMB, EMPLOY INSECTS TO WORK FOR 



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GRAY'S HOW PLANTS GROW. A Simple Introduction to Structural Botany, with a Popular Flora, or an arrangement and 

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 than 500 engravings. 232 pages. Small quarto. 95 cents. 



This book, in connection with the " School and Field Book," supplies a complete course in Botany for Common Schools, Academies, and 

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GRAY'S LESSONS IN BOTANY AND VEGETABLE PHYSIOLOGY, to which is added a copious Glossary or 

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GRAY'S FIELD, FOREST AND GARDEN BOTANY. A simple introduction to the Common Plants of the United 



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GRAY'S SCHOOL AND FIELD BOOK OF BOTANY. Comprising the " Lessons in Botany " and " Field, Forest, and 

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 Cloth, 621 pages. $2.10. 



This book, in connection with " Now Plants Grow," supplies a complete course in Botany for Common Schools, Academies, and Seminaries. 



GRAY'S MANUAL OF BOTANY. Arranged according to the natural system, and containing 20 plates, illustrating the 

 Sedges, Grasses, Ferns, etc. Fifth edition, 1867. Eighth issue, 1868. Cloth. 8vo. 700 pages. $1.86. 



THE SAME, bound with "The Lessons." $2.50. 



This work, in connection with " The Lessons," supplies a complete course in Botany /or Colleges and Scientific Schocls. 



GRAY'S NEW STRUCTURAL AND SYSTEMATIC BOTANY. An Introduction to Structural and Systematic Botany 

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