Response in the Living and Non-Living By: Jagadis Chandra Bose

Resurrection By: Robert Shea

Return-Loads Bureaus To Save Waste In Transportation By: United States. Council of National Defense. Highways Transport Committee

Revenge By: Arthur Porges

Revolted Woman By: Charles George Harper

Revolution By: Mack Reynolds

Rex Ex Machina By: Frederic Max

Rip Foster in Ride the Gray Planet By: Harold L. Goodwin

Rip Foster Rides the Gray Planet By: Harold L. Goodwin

Robur the Conqueror By: Jules Verne

Rollo's Experiments By: Jacob Abbott

Rollo's Museum By: Jacob Abbott

Rollo's Philosophy. [Air] By: Jacob Abbott

Runaway By: Joseph Samachson

Rural Hygiene By: Henry N. (Henry Neely) Ogden

Rural Problems of Today By: Ernest R. (Ernest Rutherford) Groves

Sabotage in Space By: Carey Rockwell

Salvage in Space By: Jack Williamson

Sand Doom By: Murray Leinster

Sane Sex Life and Sane Sex Living Some Things That All Sane People Ought to Know About Sex Nature and Sex Functioning; Its Place in the Economy of Life, Its Proper Training and Righteous Exercise By: H. W. (Harland William) Long

Sanitary and Social Lectures, etc By: Charles Kingsley

Satellite System By: Horace Brown Fyfe

Save the Girls By: Mason Long

Say "Hello" for Me By: Frank W. Coggins

Science - History of the Universe Vol. 1: Astronomy By: Francis Rolt-Wheeler

Science and Morals and Other Essays By: Bertram Coghill Alan Windle

Scouting For Girls, Official Handbook of the Girl Scouts By: Girl Scouts of the United States of America

Scrimshaw By: Murray Leinster

Searchlights on Health: Light on Dark Corners A Complete Sexual Science and a Guide to Purity and Physical Manhood, Advice To Maiden, Wife, And Mother, Love, Courtship, And Marriage By: B. G. (Benjamin Grant) Jefferis

Second Landing By: Floyd L. Wallace

Second Shetland Truck System Report By: William Guthrie

Second Sight By: Basil Wells