File:Birds and nature (1903) (14568670179).jpg

Identifier: birdsnature141903chic (find matches)
Title: Birds and nature
Year: 1900 (1900s)
Authors:
Subjects: Birds Natural history
Publisher: Chicago, Ill. : A.W. Mumford, Publisher
Contributing Library: Smithsonian Institution Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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is then free to crawl into thebright world, but if the growth of the beein any of the cells above it has been re-tarded or stopped, it is said that theyoung bee waits, even dying in its smallprison house so strong is its instinctagainst harming one of its own kind. We hear much of the unerring instinctof animals, and a creature with such skilland agility as Clisodon terminalis mightbe supposed to possess such instinct ina high degree, yet I found in the halfdozen burrows that I studied several cellsthat had been provisioned and sealed, butwhich contained no egg\ The genus to which this bee belongshas been separated from Anthophora onaccount of its three-toothed mandibles,the Anthophora having mandibles withtwo teeth. It is interesting to see howthis difference in structure correspondswith so marked a difference in habit, forthe Anthophoras nest in the earth anddo not need as complex tools as a beethat must cut several inches throughhard wood. Wilvtatte Porter Cockerell. 128 f ■MMMM
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ORNAMENTAL STONES. -: • :..-■- i .: :- . i. -,. t. Satin Spar, polished ItalwThulite. polis:Serpentine, polished -Cornwall, England*. Smithsonite. polished Greecerntine. polished Cornwall. England .3e ;: entine, rough Cornwall. Ens and . ORNAMENTAL STONES. RHODONITE. Rhodonite is a silicate of manganese,of a pink, or flesh-red color. It does notfurnish transparent gems, but occurringmassive in large pieces affords materialfor table-tops, vases, jewel-boxes, paper-weights, and other large objects in whichsuch a color is desired. The stone hasa slight translucency, which heightens itseffect when polished, and it is also likejade in being quite tough. The Russiansuse it more extensively perhaps than anyother people, often introducing it into or-namental and decorative works, and it isa stone especially prized by the imperialfamily. Its hardness is 5.5-6.5; its spe-cific gravity 3.4-3.7. Before the blow-pipe it fuses easily and becomes black.It crystallizes in the triclinic system. It

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