THE AMERICAN NATURALIST. 
This Illustrated Monthly Magazine of Natural History begins its Seventh Volume 
with the Number for January, 1873. 
Byery number of the NATURALIST contains 64 large 8vo pages of reading matter, illus- 
trated by plates and woodcuts. All the leading Naturalists in the Country cordially support 
it and contribute to its pages. The aim of the Editors is to make every number of the 
Magazine of importance to all persons interested in Natural History, and to keep its readers 
informed as to the latest discoveries and advances made in this progressive and popular 
science. No teacher or student can now consider himself posted by simply studying the 
latest text books, for they are necessarily old almost as soon as issued, and it is only by 
keeping informed of the daily progress of science through the medium of such Magazines 
as the NATURALIST that it is possible to keep up with the times. Besides the leading articles 
in each number there are the following special headings, under which the Miscellaneous and 
short notices are grouped — Reviews and Book Notices, Botany, Geology, Zoology, Anthro- 
pology, Microscopy, Notes, Notices of Specimens for Exchange and Books Received. 
The following are the titles of some of the leading articles in the numbers for the year 
1872: CONCERNING Drpe-SEA DREDGINGS.- By Prof. L. Agassiz. THE Biinp FISHES OF 
MammotH CAVE AND THEIR Auuies. llustrated by two plates and cuts. By F. W. Putnam. 
A New ERECTING ARRANGEMENT, FOR USE WITH BinOCULAR MICROSCOPES. By R. H. Ward, 
M.D. THE RATTLESNAKE AND NaTuRAL SELECTION. By Prof. N. S. Shaler. DISMISSAL 
oF THE LATE BOTANIST OF THE DEPARTMENT OF AGRICULTURE. By Prof. A. Gray. THE 
MounNTAINS OF COLORADO. By J. W. Foster, LL.D. IRRIGATION AND THE FLORA OF THE 
Piains. By Rev. E. L. Greene. THE FORMER RANGE OF THE BUFFALO. By J. G. Henderson. 
Tur BREATHING PORES OF Leaves. With plate: By prof. T. D. Biscoe.. AQUEOUS PHE- 
NOMENA OF THE PRAIRIES. By Prof. H. W- Parker. UNIFORMITY OF NOMENCLATURE IN 
REGARD TO MICROSCOPICAL OBJECTIVES AND OCULARS. By R. H. Ward, M.D. THE STONE 
AGE IN New JERSEY. Tllustrated: By C. C. Abbott, M.D. THE Use OF AMPHIPLEURA 
PELLUCIDA AS A TEST-OBJECT yor High POWERS. With a plate: By Dr. J. J. Woodward, 
U. S. A. WHAT Is Trun Taconic? By Prof. James D. Dana. Hints ON HERBORIZING- 
By Prof. A. H. Curtiss. ORNITHOLOGICAL Norrs FROM THE WEST. By J. A. Allen. 
INSTRUCTIONS FOR PREPARING Birps’ Eccs. By Wm. Wood, M.D. RELATIONSHIP OF THE 
AMERICAN WHITE-FRONTED Ow. By Robert Ridgway. OnE OF OUR COMMON MonaDs. 
Tilustrated: By Prof. A. H. Tuttle. STUDENTS’ MiIcROSCOPES- By R. H. Ward, M.D. 
HIBERNATION OF THE JuMPING MOUSE. Tllustrated: By Prof. S. Tenney. THE WHITE 
Corrng-LEar MINER. Illustrated: By B. P. Maun. Tye Fepias oF THE UNITED STATES. 
Tilustrated: By Prof. T. C. Porter. Mriuicry IN THE Coors OF INSECTS. By Prof. H. 
Hagen. A VISIT TO THE OriGinaL LocaLiry OF THE New SPECIES OF ARCEUTHOBIUM IN 
Warren Co., N. Y- By C. C. Parry, M.D. Tur WYANDOTTE Cave AND ITS Fauna. Tllus- 
trated: By Prof. E. D. Cope. A NEw ENTOZOON FROM THE EEL. Jilustrated: By Rey. 
Samuel Lockwood, Ph.D. On THE USE OF MonocHuRoMATic SUNLIGHT AS AN Arp TO HiGu- 
powrr Drrririon. By Dr. J. J. Woodward, of U. §. A. Medical Museum. SoME OF THE 
Famiuiar Brrps or Inpia. By Rey. H. J. Bruce. Tur Currous History OF 4 BUTTERFLY. 
By S._H. Scudder, B.S. ON THE GreoLoGy oF THE ISLAND OF AQUIDNECK, ETC. With a 
map: By Prof. N.S. Shaler. New IMMERSION ILLUMINATION. Tllustrated: By R. H. Ward, 
M.D. CausE OF THE DETERIORATION IN SOME OF OUR NATIVE GRAPE-VINES, grec. ILllus- 
trated: By Prof. C. V. Riley. SEQUOIA AND ITS Hisrory, an address before the A. A. 
A. (Se. by, Prof. A. Gray. Facer Urns IN Braz. Illustrated : By Prof. C. F. Hartt. ON 
AponriGiInaL RELICS KNOWN 4S “PLUMMETS.” Tllustrated: By J. G. Henderson. CoNnTRI- 
BUTIONS TO THE NATURAL History or Quito. By Prof. James Orton. ON THE 
VEGETATION OF THE Wapasn VaLttry. By Robert Ridgway- Fossit INSECTS FROM THE 
Rocky Mounrarys. By S. H. Scudder, B.S. GEOLOGICAL AGE OF THE CoaL OF WYOMING. 
By Prof. E. D. Cope. Errgcrs oF EXTRAORDINARY SEASONS ON THE DISTRIBUTION OF 
ANIMALS AND PLANTS. By Prof. N. 8. Shaler. THE CARPENTER BEE AND BaLTIMORE 
OrioLtE. By Rev. Samuel Lockwood. ON THE CativorniaN TRIVIA. Illustrated: By R. 
B. C Stearns. THE ALPINE Fiora or Cororapo. By Rey. E. L. Greene. ON ORGANIC 
Vigor anp Sex. By Prof. Henry Hartshorne. ON THE CRANIA OF THE Mounp BUILDERS. 
Tilustrated: By J. W- Foster, LL.D. 
pitegie eee SS 
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A. §, PACKARD, Jr, and F. W. PUTNAM, Editors and Proprietors, Salem, Mass. 
R. H. WARD, of Troy, N. Y., Associate Editor of Department of Microscopy- 
Address AMERICAN NATURALIST, Salem, Mass. 
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