THE

AMERICAN NATURALIST,

AN ILLUSTRATED MAGAZINE

OF

NATURAL HISTORY.

EDITED BY

A. S. PACKARD, JR. AND F. W. PUTNAM.

Entered, according to Act of Congress, in the year 1872, by the

PEABODY ACADEMY OF SCIENCE,

in the Office of the Librarian of Congress, at Washington.

PRINTED AT

THE SALEM PRESS, F. W. PUTNAM & CO.,
Salem, Mass.

CONTENTS OF VOLUME VI.

Page

CONCERNING DEEP SEA DREDGINGS. By Prof. L. Agassiz,

1

THE BLIND FISHES OF MAMMOTH CAVE AND THEIR ALLIES. Illus-
trated by two plates and cuts. By F. W. Putnam,

A NEW ERECTING ARRANGEMENT, ESPECIALLY DESIGNED FOR USE

WITH BINOCULAR MICROSCOPES. By R. H. Ward, M.D.,

THE RATTLESNAKE AND NATURAL SELECTION. By Prof. N. S.

Shaler, ..

30

32

65

76

79

129

133

137

THE MOUNTAINS OF COLORADO. By J. W. Foster, LL.D.,

IRRIGATION AND THE FLORA OF THE PLAINS. By Rev. E. L. Greene,

THE FORMER RANGE OF THE BUFFALO. By John G. Henderson, .

THE BREATHING PORES OF LEAVES. With plate. By Prof. T. D.

Biscoe,

AQUEOUS PHENOMENA OF THE PRAIRIES. By Prof. H. W. Parker,.

REMARKS ON UNIFORMITY OF NOMENCLATURE IN REGARD TO MICRO-

SCOPICAL OBJECTIVES AND OCULARS. By R. H. Ward, M.D.,

THE STONE AGE IN NEW JERSEY. Illustrated. By Charles C.

Abbott, M.D.,

THE USE OF AMPHIPLEURA PELLUCIDA AS A TEST OBJECT FOR

HIGH POWERS. With a plate. By Dr. J. J. Woodward, U.S.A.,

WHAT IS TRUE TACONIC? By Prof. J. D. Dana,

HINTS ON HERBORIZING. By Dr. A. H. Curtiss,

USE OF THE RATTLES OF THE RATTLESNAKE. By J. G. Henderson,

ORNITHOLOGICAL NOTES FROM THE WEST.

144, 199

PART III. NOTES ON THE BIRDS OF THE GREAT SALT LAKE
VALLEY,

394

DIRECTIONS FOR COLLECTING MICROLEPIDOPTERA. By Lord Wal-

singham,

275

INSTRUCTIONS FOR PREPARING Birds' EGGS. By William Wood,

RELATIONSHIP OF THE AMERICAN WHITE-FRONTED OWL. By

Robert Ridgway,

STUDENTS' MICROSCOPES. By R. H. Ward, M.D.,

HIBERNATION OF THE JUMPING MOUSE. By Prof. Sanborn Tenney,

THE WHITE COFFEE-LEAF MINER. With plate. By B. Pickman

Mann,

THE FEDIAS OF THE NORTHERN UNITED STATES. Illustrated. By

Prof. Thomas C. Porter,

321

330

332, 596

385

MIMICRY IN THE COLORS OF INSECTS. By Dr. H. Hagen,

388