| 773 |
Essay
|
Non Fiction |
Can Man Free Himself from Gravity?
|
Hugo Gernsback
|
| 774 |
Serial
|
Fiction |
A Rescue from Jupiter (Part 1 of 2)
|
Gawain Edwards
|
| 787 |
Essay
|
Non Fiction |
What Is Your Knowledge of Science? (Science Wonder Stories, February 1930)
|
uncredited
|
| 788 |
Essay
|
Non Fiction |
Can Man Free Himself from Gravity?
|
Dr. Th. Wolff
|
| 789 |
Essay
|
Non Fiction |
Response: Limit of 400 Kilometers Is Wrong
|
Professor R. H. Goddard
|
| 790 |
Short Fiction
|
Fiction |
Streamers of Death
|
Henrik Dahl Juve
|
| 806 |
Short Fiction
|
Fiction |
The Land of the Bipos
|
Francis Flagg
|
| 818 |
Short Fiction
|
Fiction |
The World of a Hundred Men
|
Walter Kateley
|
| 843 |
Essay
|
Non Fiction |
Science News of the Month (Science Wonder Stories, February 1930)
|
uncredited
|
| 847 |
Essay
|
Non Fiction |
Science Questions and Answers (Science Wonder Stories, February 1930)
|
various
|
| 848 |
Essay
|
Non Fiction |
The Reader Speaks (Science Wonder Stories, February 1930)
|
various
|
| 856 |
Essay
|
Non Fiction |
Letter (The Author Speaks)
|
Walter Kateley
|
| 863 |
Essay
|
Non Fiction |
Book Reviews (Science Wonder Stories, February 1930)
|
uncredited
|
| 841|841.1 |
Essay
|
Non Fiction |
Response: Would Wish to Have It Restored
|
Professor Samuel G. Barton
|
| 841|841.2 |
Essay
|
Non Fiction |
Response: The Possibility of Aviation Would Be Destroyed
|
Dr. Clyde Fisher
|
| 842|842.1 |
Essay
|
Non Fiction |
Response: The Answer in the Action of Molecules
|
Professor A. L. Fitch
|
| 842|842.2 |
Essay
|
Non Fiction |
Response: The Equivalent of Perpetual Motion
|
Professor Donald H. Menzel
|
| 842|842.3 |
Essay
|
Non Fiction |
Response: Nothing Points to Its Failure or Realization
|
Prof. C. Irwin Palmer
|
| 842|842.4 |
Essay
|
Non Fiction |
Response: Gravitation Has Been Overcome
|
Professor James Byrnie Shaw
|