Science & Engineering

Hybridization Between Two Species of Garter Snakes

Hobart M. Smith

Ĉe la koro de la tero

Edgar Rice Burroughs

On Handling the Data

M. I. Mayfield

Psichopath

Randall Garrett

Grove of the Unborn

Lyn Venable

Made in Tanganyika

Carl Jacobi

Summit

Mack Reynolds

The Servant Problem

Robert F. Young

Geographic Variation in Red-backed Mice (Genus Clethrionomys) of the Southern Rocky Mountain Region

E. Lendell Cockrum

Friend Island

Francis Stevens

The Ambulance Made Two Trips

Murray Leinster

The Circuit Riders

R. C. FitzPatrick

A Choice of Miracles

James A. Cox

Lords of the Stratosphere

Arthur J. Burks

The Skull

Philip K. Dick

Poisoned Air

S. P. Meek

The Monster

S. M. Tenneshaw

Phylogeny of the Waxwings and Allied Birds

M. Dale Arvey

Watchbird

Robert Sheckley

The Heads of Apex

George Henry Weiss

Lippincott's Magazine of Popular Literature and Science, Volume 15, No. 89, May, 1875

Various

Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture

William Saunders

Cruise of the Revenue-Steamer Corwin in Alaska and the N.W. Arctic Ocean in 1881: Botanical Notes
Notes and Memoranda: Medical and Anthropological; Botanical; Ornithological.

John Muir

The Altar at Midnight

C. M. Kornbluth

Dogfight—1973

Mack Reynolds