"Amazing Stories", April 1940 (magazine, free): Table of contents & download link

Scans of this magazine are available online as part of a larger package.

Table of contents.

1. Thornton Ayre's "The case of the Murdered Savants": Something was queer about these corpses & Brutus Llloyd determined to solve the mystery."
2. David Wright O'Brien's "Fish Men of Venus": "Carter had to fight both Fish Men & earth Men to clear his name on the Venus Sea Bottom."
3. John Russell Fearn's "War of the Scientists": "When two scientific factions take to war there's bound to be plenty of hell breaking all around."
4. Milton Kaletsky's "Revolt of the Ants": '"We want suffrage!" cried the ants. "We have the right to vote!" So they came to Washington.'
5. [serial, concluding installment] A R Steber's "Black World": "John Carver discovers the secret of the Black World & battles to prevent a great tragedy."
6. Kack West's "When the Ice Terror Came": "Utter horror struck into Claude Harper's brain as a whole continent of people froze in their tracks."