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Scientific American, Vol. 80, No. 3 (January 1899) (1899)
leaf 8
ke example, the warming and moisten- a gas balloon, it usually sails at a ing of the air, and its purification low level (though it has occasional- from dust before entry into the ly reached two miles elevation), and lungs, and a large portion also of it is purposely balanced or weighted the upper… … nature of these emanations prob- showed their value. The complete ably varies considerably. Water, THE " SKYCYCLE" AT THE "HEIGHT OF A QTTABTEB OF A MILE. apparatus, now in good order after © 1899 SCIENTIFIC AMERICAN, INC.Apparatus · Beets · Fulton · Patents · Wool fat · Bicycle · High grade · German silver · Scientific American · Edible weeds · Purified wool · Storage battery · Paper copy · Edible weed · Coast defense
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