 | Benjamin Franklin - United States - 1906 - 498 pages
...suppose some great heat and rarefaction of the air in or about the Gulph of Mexico; the air thence rising has its place supplied by the next more northern, cooler, and therefore denser and heavier, air ; that, being in motion, is followed by the next more northern air, &c. &c., in a successive current,... | |
 | Franklin Institute (Philadelphia, Pa.) - Electronic journals - 1906 - 652 pages
...suppose some great heat and rarefaction of air in or about the Gulph of Mexico; the air thence rising has its place supplied by the next more northern, cooler, and therefore denser and heavier, air; that, being in motion, is followed by the next more northern air, &c., &c., in a successive current,... | |
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I suppose some great heat and rarefaction of the air in or about the Gulf of Mexico ; the air thence rising has its place supplied by the next more northern, cooler, and therefore denser and heavier, air ; that, being in motion, is followed by the next... 
