well as interested at tity of air amongst the steam that is to supply a steam en- represented in our illustration. Its magnifying power, in gine has been found to produce improved economy of hea? the odd names given to oil wells in the oil regions, says tho other words, is 3,000 times, and as the… … the actual rise requiréd is only 84° Fahr., and rect optical proof. without going into a minute calculation of the surplus heat pleted each month, and to each must be given a name by 4 @ >a —— --— produced by the compression of the air, it may be mentioned Novel Fire Alarm. which it may known by…
Internet Archive · Public domain (published before 1931). Free to use for anything.
