I 28.23:4656
|
Deep-well pumps and shaft pumps in anthracite mines of Pennsylvania / |
1 |
I 28.23:4657
|
Analyses of some crude oils from the Middle East, South America, and Canada / |
1 |
I 28.23:4658
|
A preliminary survey of zirconium alloys / |
1 |
I 28.23:4659
|
Investigation of Stange and Byrnes Heirs manganese mines, Bland and Giles Counties, Va. / |
1 |
I 28.23:4659-4675
|
Investigation of the Winterboro talc deposits, Talladega County, Ala. / |
1 |
I 28.23:4660
|
Investigation of Gilley fluorspar deposits, Cherokee County, Ala. / |
1 |
I 28.23:4661
|
Investigation of the Winterboro talc deposits, Talladega County, Ala. / |
1 |
I 28.23:4662
|
Solvent extraction of coal by aromatic compounds at atmospheric pressure / |
1 |
I 28.23:4663
|
Comparison of poisonous gases from permissible explosives as obtained in Bichel-Gage and coal-mine tests / |
1 |
I 28.23:4664
|
National annual survey of commercial aviation gasoline : October, 1949 production / |
1 |
I 28.23:4665
|
Magruder and Chambers copper deposits, Lincoln and Wilkes counties, Ga. / |
1 |
I 28.23:4666
|
Investigation of Perkiomen Creek copper deposits, Montgomery County, Pa. / |
1 |
I 28.23:4667
|
Report of research and technologic work of explosives, explosions, and flames : fiscal year 1949 / |
1 |
I 28.23:4668
|
Investigation of Oriskany iron-ore deposits, Alleghany, Bath, Botetourt, and Craig counties, Va. / |
1 |
I 28.23:4669
|
Investigation of Taylor Creek lead-zinc deposit, Kupreanof Island, Petersburg, Alaska / |
1 |
I 28.23:4670
|
Flotation and cyanidation tests on a gold-copper sulfide ore from Cooke, Mont. / |
1 |
I 28.23:4671
|
Limits of flammability and ignition temperatures of phthalic anhydride / |
1 |
I 28.23:4672
|
A process for the recovery of gold from activated carbon by leaching and electrolysis / |
1 |
I 28.23:4673
|
Investigation of North Empire zinc-lead deposit, Cherokee County, Kans. / |
1 |
I 28.23:4674
|
Flotation of a North Carolina pyrophyllite ore / |
1 |