=In Astronomy=, Dr. Simon Newcomb’s new book, published October, 1900; in =Physics=, the Johns Hopkins text of Professors Rowland and Ames; also in Physics for second and third year high school work, the text of Dr. Hoadley, of Swarthmore; in =Physiology=, the text by Drs. Macy and Norris, based on the Nervous System; also the =High School Physiology= indorsed by the W. C. T. U., written by Dr. Hewes, of Harvard University; in =Geology=, the =Revised “Compend”= of Dr. Le Conte, and the two standard works of Dana,—The =Manual for University Work=, and the =New Text Book=, revision and rewriting of Dr. Rice, for fourth year high school work; in =Chemistry=, the approved =Storer and Lindsay=, recommended for secondary schools by the leading colleges; in =Zoology=, the =Laboratory Manual= of Dr. Needham, of Cornell; and the Series “=Scientific Memoirs=” edited by Dr. Ames, of Johns Hopkins. Nine volumes ready. The publishers cordially invite correspondence. AMERICAN BOOK COMPANY, =CINCINNATI= ------------------------------------------------------------------------ ● Transcriber’s Notes: ○ Missing or obscured punctuation was corrected. ○ Typographical errors were silently corrected. ○ Inconsistent spelling and hyphenation were made consistent only when a predominant form was found in this book. ○ Text that was in italics is enclosed by underscores (_italics_); text that was bold by “equal” signs (=bold=). End of the Project Gutenberg EBook of The O. S. U. Naturalist, by Various