Yhe JVatlonat Series of SUatdai'd School-:Books, 



CHEMISTRY. 



Porter's First Book of Chemistry, . . . . Ii oo 

 Porter's Principles of Chemistry, 3 oo 



The above are widely known as the productions of one of the most eminent scien- 

 tific men of America. The extreme simplicity in the method of presenting th© 

 science, while exhaustively treated, has excited universal commendation. 



Darby's Text-Book of Chemistry, i 75 



Purely a Chemistry, divesting the subject of matters comparatively foreign to it 

 (such as heat, light, electricity, etc.), but usually allowed to engross too much atten- 

 tion in ordinary school-books. 



Gregory's Organic Chemistry, ^50 



Gregory's Inorganic Chemistry, 2 50 



The science exhaustively treated. For colleges and medical students. 



Steele's Fourteen Weeks Course, i 50 



A successful effort to reduce the study to the limits of a single term^ thereby 

 making feasible its general introduction in institutions of every character. The 

 author's felicity of style and success in making the science pre-eminently interest' 

 ing are peculiarly noticaable features. (See page 34.) 



Steele's Chemical Apparatus, ...... .*20 oo 



Adequate to the performance of all the important experiments in the ordinary 

 text-book. 



Steele's New Chemistry, {see p. 31) .... i 50 



Contains the new nomenclature, 



BOTANY. 

 Thinker's First Lessons in Botany, .... 40 



For children. The technical terms are largely dispensed with in favor of an 

 easy and familiar style adapted to the smallest learner. 



Wood's Object-lessons in Botany, .... i 50 

 Wood s American Botanist and Florist, . . 2 50 

 Wood's New Class-Book of Botany, .... 3 50 



The standard text-books of the United States in this department. In style they 

 are simple, popular, and lively; in arrangement, easy and natural; in description, 

 graphic and strictly exact. The Tables for Analysis are reduced to a perfect sys- 

 tem. More are annually sold than of all others combined. 



Wood's Plant Record, *75 



A simple form of Blanks for recording observations in the field. 



Wood's Botanical Apparatus, *8 oo 



A portable Trunk, containing Drying Press, Knife, Trowel, Microscope, and 

 Tweezers, and a copy of Wood's Plant Kecord— composing a complete outfit for 

 the collector. 



Young's Familiar Lessons, 2 oo 



Darby's Southern Botany, 2 oo 



Embracing general Structural and Physiological Botany, with vegetable products. 



