The National Geographic Magazine, Volume 70National Geographic Society, 1936 - Geography Indexes kept up to date with supplements. |
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Page 548
... cars , 38 to passenger cars , and 84 to other lines of inquiry . All new equipment must gear in with that already in use . A new car , a new brake , or a new coupling device must per- mit the car to be operated on practically all ...
... cars , 38 to passenger cars , and 84 to other lines of inquiry . All new equipment must gear in with that already in use . A new car , a new brake , or a new coupling device must per- mit the car to be operated on practically all ...
Page 573
... cars . Now precooling in plants has given way to precooling within the cars . This is ac- complished by placing ice and salt in tanks on the cars and forcing air circulation by portable fans . After precooling the fans are removed , the ...
... cars . Now precooling in plants has given way to precooling within the cars . This is ac- complished by placing ice and salt in tanks on the cars and forcing air circulation by portable fans . After precooling the fans are removed , the ...
Page 578
... cars - end - door cars , ven- tilated boxcars , gondola cars , stock cars , refrigerator cars , tank cars , and with vari- ous materials - Cor - Ten , duralumin , alumi- num , and other alloys - in their quest for the magic combination ...
... cars - end - door cars , ven- tilated boxcars , gondola cars , stock cars , refrigerator cars , tank cars , and with vari- ous materials - Cor - Ten , duralumin , alumi- num , and other alloys - in their quest for the magic combination ...
Contents
Beds | 83 |
70 | 125 |
New Safeguards for Ships in Fog and Storm By GEORGE R PUTNAM | 169 |
Copyright | |
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