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Egyptian Antiquities

The Pyramids of Egypt

Diggings in Bœotia

Industrial Education

Tanning in 1880.—A Paper on the First Preparation of Green Hides and Upon Mineral Tanning

Tannic Acid as a Preventive of Frilling and Blisters

Pike's Peak not a Volcano

Modification of Emulsion Processes

The Proposed Tehuantepec Ship Railway

By W. Zabemba

The Swill-Tubs of New York

Fulton's First Steamboat

Calvert Street Bridge in Baltimore

The Washing of Fine or Pulverized Coal

On the Thermal Balance

By S. P. Langley

Recent Studies Among the Stars

By Isaac Sharpless

The Early Practice of Medicine by Women

By H. Carrington Bolton

On the Beneficent and Toxical Effects of the Various Species of Rhus

By T. J. W. Burgess

Scientific Breeding

By J. D. Caton

Don Cossack

A Buffalo Race in the Philippine Islands

Deep Sea Life

Export of American Hogs

Animal Life

By J. H. Barker


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March 26, 1881

Confronting Common Wisdom