...At Niekerk, for instance,nine or ten hills are fortified on concentric walls thirty tofifty feet in number, with a place for the village at the top...
W.E.B. Du Bois 「The Negro」
...Phosphatic calculus containing a nucleus of uric acid, sawed throughto show concentric layers...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Tunicate: composed of concentric layers, enveloping oneanother: said of antennae when each successive joint is buried inthe preceding funnel-shaped one...
John. B. Smith 「Explanation of Terms Used in Entomology」
...It is a small conical crater, with sides of a pale yellowish-red and with faint, more or less concentric lines...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...The process of manufacture is as follows: they cut off a strip of bark large enough for one, two, three, or four belts, andcoil it up in concentric circles, like the two circles of the belt when worn...
Robert W. Williamson 「The Mafulu」
...As in the picture last considered, we see the two circles, eachwith a concentric smaller circle, one on each side of the mythic birdrepresented...
Jesse Walter Fewkes 「Archeological Expedition to Arizona in 1895」
...It will also be noticed that the outer arches ofthe triforium are not concentric with the sub-arches...
C. H. B. Quennell 「Bell's Cathedrals: The Cathedral Church of Norwich」
... Basket showingribbed surface produced by impacting the horizontal or concentric filaments...
William H. Holmes 「A Study Of The Textile Art In Its Relation To The Development Of Form And Ornament」
... He picked up the little contrivance of many concentric rings...
Various 「Astounding Stories of Super-Science January 1931」
...The concentric circles merged—tightened—became one gleamingcord that encircled the helpless prey...
Various 「Astounding Stories of Super-Science, May, 1930」
...No doubt could remain as to the factthat Saturn was girdled by two concentric rings equally thin, the outeredge of one closely approaching to the inner edge of the other...
Robert Stawell Ball 「The Story of the Heavens」
...On other occasions concentric arcs oflight are formed round the nucleus, one after another, getting fainteras they travel further from the nucleus...
Robert Stawell Ball 「The Story of the Heavens」
... call them Concentric Comets...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
...A hollow concentric spherical shell exerts no force onsmall bodies inside it...
Oliver Lodge 「Pioneers of Science」
...As the comet gets close to thesun its head becomes heated, and throws off concentric envelopes, muchof which consists of matter in an extremely fine state of division...
E. Walter Maunder 「The Astronomy of the Bible」
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