NEWS AND NOTES.

The Summer Field Meeting of the Ohio State Academy of Science will be held at Wooster, Ohio, on Friday and Saturday, May 31 and June 1, 1901, under the auspices of the University of Wooster, the Ohio Experiment Station and the Wooster Field Naturalist’s Club. The plan includes Friday about the small lakes southwest of Wooster, and an evening meeting in Wooster; Saturday morning at the Experiment Station, to be followed by an excursion to North Lawrence with its mines and Fox Lake with its tamarack bog.

Prof. Charles S. Prosser in an article in the Am. Jour. of Sci. 11:191–199, 1901, discusses the names applied to the formations of the Ohio Coal measures. The following names are proposed.

The Philadelphia Fleabane (Erigeron philadelphicus L.) is one of our interesting spring plants and will repay careful study. The leaves of the stem in most individuals have a decided polarity and for the most part are twisted so as to stand in a single plane. In this respect the plant is as striking as any of the so-called compass plants, although the plane in which the leaves lie may be in any direction. Another interesting adaptation is the drooping of the top of the young plant. The entire inflorescence nods at first and finally the individual heads, but one by one these assume the upright position as the flowers begin to open.

J. H. S.

Winter Adaptation of Opuntia.—The Ohio species of cactus, Opuntia humifusa Raf., has an interesting habit which seems to be a protective measure against cold. At the approach of Winter the flattened stems lose their upright position and press themselves closely to the surface of the ground.

The stems lose considerable of their moisture at the same time, becoming wrinkled but not at all flaccid. By the end of April they are again upright and distended.

F. J. T.

Ohio State University

Six distinct and independent Colleges, each with a Dean and Faculty of its own.THIRTY SEVEN DEPARTMENTS. THIRTY DISTINCT COURSES.Agriculture, Arts, Law, Engineering, Pharmacy, Veterinary Medicine.

Six distinct and independent Colleges, each with a Dean and Faculty of its own.

THIRTY SEVEN DEPARTMENTS. THIRTY DISTINCT COURSES.

Agriculture, Arts, Law, Engineering, Pharmacy, Veterinary Medicine.

Superior facilities for education in Applied Science. Short or special courses for mature students not candidates for degrees.

One hundred and twenty one instructors. Over thirteen hundred students.FINEST GYMNASIUM IN THE WEST.

One hundred and twenty one instructors. Over thirteen hundred students.

FINEST GYMNASIUM IN THE WEST.

For further information address the President,

Dr. W. O. Thompson, State University, Columbus.

Ohio Forest Trees Identified by Leaves and Fruit.ByW. A. Kellerman, Ph. D., Ohio State University.

Ohio Forest Trees Identified by Leaves and Fruit.

ByW. A. Kellerman, Ph. D., Ohio State University.

A neat pamphlet for every one who wishes to learn our native forest trees. Keys simple. Description plain. Can learn the names of the trees easily.

Also,The Fourth State Catalogue of Ohio Plants.

Gives list of scientific and common names; distribution by counties.

Teachers and others will also be interested in Prof. Kellerman’s Phyto-theca or Herbarium Portfolio,Practical Studiesin Elementary Botany,Elementary Botanywith Spring Flora, all published by Eldredge & Bro., Philadelphia, to whom apply.

For information or copies ofForest TreesandCatalogueor names of plant specimens of your regionaddress

W. A. Kellerman, Columbus, Ohio

American Entomological Co.1040 DE KALB AVENUE, BROOKLYN, N. Y.Lepidoptera Price List No. 2.—Price 5 centsRefunded to BuyersIssued November15th 1900.Dealers of all kinds of ...Entomological SuppliesManufacturers of the Original and Celebrated ... SCHMITT INSECT BOXESBuilders of INSECT CABINETS, ETC.

American Entomological Co.

1040 DE KALB AVENUE, BROOKLYN, N. Y.

Lepidoptera Price List No. 2.—Price 5 centsRefunded to Buyers

Issued November15th 1900.

Dealers of all kinds of ...Entomological Supplies

Manufacturers of the Original and Celebrated ... SCHMITT INSECT BOXES

Builders of INSECT CABINETS, ETC.

The Twentieth Century Text Books of Biology.

All by JOHN MERLE COULTER, A. M., Ph. D., Head of Dept. of Botany, University of Chicago.

They are already the preferred texts, and the reasons will be apparent on examination.

ANIMAL LIFE: A First Book of Zoology.

By DAVID S. JORDAN, M. S., M. D., Ph. D., LL. D., President of the Leland Stanford Junior University, and VERNON L. KELLOGG, M. S., Professor in Leland Stanford Junior University. 12mo. Cloth, $1.20.Now ready.

Not a book for learning the classification, anatomy, and nomenclature of animals, but to show how animals reached their present development, the effects of environment, their place in Nature, their relations to one another and to the human race. Designed for one-half year’s work in high schools. Send for sample pages.

ANIMAL FORMS: A Second Book of Zoology.

By DAVID S. JORDAN. M. S., M. D., Ph. D., LL. D., and HAROLD HEATH, Ph. D., Professor in Leland Stanford Junior University.Ready in February, 1901.

D. APPLETON AND COMPANY, Publishers,New York,Chicago,London.

Recent Scientific Works

InAstronomy, Dr. Simon Newcomb’s new book, published October, 1900; inPhysics, 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; inPhysiology, the text by Drs. Macy and Norris, based on the Nervous System; also theHigh School Physiologyindorsed by the W. C. T. U., written by Drs. Hewes, of Harvard University; inGeology, theRevised“Compend” of Dr. Le Conte, and the two standard works of Dana,—TheManual for University Work, and theNew Text Book, revision and rewriting of Dr. Rice, for fourth year high school work; inChemistry, the approvedStorer and Lindsay, recommended for secondary schools by the leading colleges; inZoology, theLaboratory Manualof 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

The publishers cordially invite correspondence.

AMERICAN BOOK COMPANY,Cincinnati

TRANSCRIBER’S NOTESSilently corrected obvious typographical errors and variations in spelling.Retained archaic, non-standard, and uncertain spellings as printed.

TRANSCRIBER’S NOTES

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