Ants. Bees, and WaspsKegan Paul, Trench & Company, 1882 |
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Seite 208
... bisulphide of carbon are extremely opaque , though perfectly transparent in the case of visible rays , and therefore to our eyes entirely colourless and trans- parent . If , therefore , the ants were really affected by the ultra ...
... bisulphide of carbon are extremely opaque , though perfectly transparent in the case of visible rays , and therefore to our eyes entirely colourless and trans- parent . If , therefore , the ants were really affected by the ultra ...
Seite 209
... bisulphide of carbon . I then thought that though no doubt the iodine rendered the bisulphide more completely impervious to the ultra - violet rays , I would try the effect of it when pure and perfectly colourless . I therefore tried ...
... bisulphide of carbon . I then thought that though no doubt the iodine rendered the bisulphide more completely impervious to the ultra - violet rays , I would try the effect of it when pure and perfectly colourless . I therefore tried ...
Seite 210
... bisulphide of carbon , moving them from time to time as before , and the ants in every case went under the bisulphide . I then reduced the thickness of the layer of bisul- phide to of an inch , but still they preferred the bisulphide ...
... bisulphide of carbon , moving them from time to time as before , and the ants in every case went under the bisulphide . I then reduced the thickness of the layer of bisul- phide to of an inch , but still they preferred the bisulphide ...
Seite 211
... bisulphide of carbon over a piece of violet glass . By this arrange- ment I got the violet without the ultra - violet rays ; and I then contrasted this combination with other coloured media . First , I took a solution of bichromate of ...
... bisulphide of carbon over a piece of violet glass . By this arrange- ment I got the violet without the ultra - violet rays ; and I then contrasted this combination with other coloured media . First , I took a solution of bichromate of ...
Seite 212
... bisulphide . half under each . وو In this case , therefore , though without the layer of bisulphide the violet glass would always have been avoided , the result of placing the bisulphide over the violet glass was that the ants did not ...
... bisulphide . half under each . وو In this case , therefore , though without the layer of bisulphide the violet glass would always have been avoided , the result of placing the bisulphide over the violet glass was that the ants did not ...
Häufige Begriffe und Wortgruppen
A.M. ditto amicably received antennæ aphides August bees bisulphide of carbon blue paper carried cleaned colour compound eyes dark dead dragged dropped Eciton eggs experiments flowers Forel Formica fusca Formica rufa four Fourmis friends glass and bisulphide green paper half hive honey on blue honey on green hour Huber inches insects instance journeys and brought la ruche larva larvæ Lasius flavus Lasius niger males ment minutes moved Myrmica ruginodis nest of Formica nest of Lasius observations ocelli October once attacked orange paper bridge placed Polyergus porcelain pupa pupæ queen recognise red glass result returned round scent seemed September slip of glass soon species specimens stranger strip of paper Tetramorium thalline band three ants took no notice transposed tried turned ultra-violet ultra-violet rays violet glass wandering wasps watched workers yellow glass دو وو
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