...Manygeologists and mining engineers knew that the radium was there, fortheir instruments had proven it often; but no one up to then knew howto get to it... 
Various 「Astounding Stories, April, 1931」
...It was relieved by Professor Guinness'spicking up the chunk of radium ore his former partner had hewn fromthe cavern's wall...
Various 「Astounding Stories, April, 1931」
...Dixon waitedtensely at bay, remembering those searing radium burns upon EmilCrawford's body...
Various 「Astounding Stories, May, 1931」
..." Inside of a radium mine! Chased by an amoeboidbody! Ooh!...
Various 「Astounding Stories, July, 1931」
...Your experiencewas with pure radium...
Various 「Astounding Stories, July, 1931」
...For in our midst wereunscrupulous brigands, masquerading as harmless passengers, intent onseizing the secret treasure of radium ore Johnny Grantline of theGrantline Expedition had dug from the Moon...
Various 「Astounding Stories of Super-Science, May, 1930」
...“You’ve heard ofthe Federated Radium Motor?”...
Various 「Astounding Stories of Super-Science, March 1930」
...That Martian Company needsradium...
Various 「Astounding Stories of Super-Science, March 1930」
...The whole thing is no mystery after you learn it—notnearly so much as radium, or radio, was...
Various 「Astounding Stories of Super-Science, June, 1930」
...It is a pitchblendedeposit, and it happens to be so rich in radium content thatthroughout the ages it has affected all the life in the cavern...
Various 「Astounding Stories of Super-Science, June, 1930」
...Thecontent of radium per ton in this ore proved unbelievably rich: wewere delighted...
Various 「Astounding Stories of Super-Science, June, 1930」
..."That radium stuff is what makes the funny light in that mine, then?"asked Maget...
Various 「Astounding Stories of Super-Science, June, 1930」
..."If a man touched that radium...
Various 「Astounding Stories of Super-Science, June, 1930」
..."We donot want the world to know too much of our vast store of radium...
Various 「Astounding Stories of Super-Science, June, 1930」
...A hundred millions of dollars in gold-leaf;there will be fabulous riches forus all, when that radium ore is soldfor a hundred million in gold-leaf...
Various 「Astounding Stories of Super-Science April 1930」
...Obedient to the driver's touchon a lever, the tiny radium motorof the chariot ceased to revolveand the equipage stopped its forwardmotion...
Sterner St. Paul Meek 「Giants on the Earth」
...The room was littlemore than a single large cell carvedfrom the living rock, and lightedby a single radium bulb in the ceiling...
Hal K. Wells 「The Cavern of the Shining Ones」
...With the radium...
Harl Vincent 「Vulcan's Workshop」
...Sir William Ramsay, however, discovered it to be also aterrestrial element in 1895, and since then it has come into muchprominence as one of the products given off by radium...
Cecil G. Dolmage 「Astronomy of To-day」
... Bodies such as radium, thorium, etc...
Garrett Serviss 「Curiosities of the Sky」
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