File:Scientific American Volume 78 Number 03 (January 1898) (1898) (14800984363).jpg

Identifier: scientific-american-1898-01-15 (find matches)
Title: Scientific American Volume 78 Number 03 (January 1898)
Year: 1898 (1890s)
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Subjects: scientific steam apparatus tion bicycle munn feet wire scientific american machine wax cloth triple expansion horse power columbia river fluid pressure years ago hot water direct current low pressure
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s taketheir places be-hind the bin togrind, it is notunusual for someyoung man whois interested inone of them toact as musician.Squatting nearby, he evolves apeculiar purringsound by rubbinga stick over anoth-er one in whichsmall notcheshave been cut,while the maidens themselves sing to this accompaniment. The rub-bing is always done by a motion of the body fromthe hips, the arms being held rigid. At intervals thegrinding stone is moved with one hand alone, whilewith the other the corn or coarse meal is gathered upfrom the bottom and sides of the bin and placed aboveit. As the small stone is worked with a slight rock-ing motion the grain slowly passes under it, and thisis repeated until the required degree of fineness is at- only by the maidens of the tribe, and by them onlyfrom puberty until marriage. The custom appears tobe of great antiquity, for it was noticed by Castahedain 1540. The hair is arranged in disklike projectionson either side of the head, as shown in the illustration.
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HOPI GRINDING AND PAPER BREAD These disks have a symbolical meaning and are thoughtto represent the squash flower, itself the symbol of fer-tility among these people. After marriage the womenalways wear their hair in two short queues wound andtied with a ribbonlike strip of their own weaving. — 1 ■ > m A Telephone for the Submarine Boat. A telephone has been added to the equipment of the Argonaut, the submarine boat shown in our last The Current Number of the Supplement. The Scientific American Supplement for thecurrent week, No. 1150, contains four or five articles ofmore than usual interest. The American Bicycle :Its Theory and Practice of Construction, by Mr. Leonard Waldo,deals with the sci-entific aspect ofthe bicycle, not asan assemblage ofparts, but as aconcrete machineof remarkableefficiency. The article is ac-companied by ta-bles giving valua-ble data based onexperiments withmodern testingapparatus, touch-ing especially thecomparison of thechain less and or-dinary whee

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