The Shipley Collection of Scientific Papers, Volume 1141880 |
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... ment , so far as I have made it out , for the stages during which the cumulus is visible . The first change that I find in the embryo ( when examined after it has been hardened ) is the appearance of a small , whitish spot , which is at ...
... ment , so far as I have made it out , for the stages during which the cumulus is visible . The first change that I find in the embryo ( when examined after it has been hardened ) is the appearance of a small , whitish spot , which is at ...
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procephalic lobe . I cannot accept the validity of this argu- ment ; though I am glad to find myself in , at any rate , partial harmony with the distinguished French embryologist as to the facts . Balbiani denies for this stage the ...
procephalic lobe . I cannot accept the validity of this argu- ment ; though I am glad to find myself in , at any rate , partial harmony with the distinguished French embryologist as to the facts . Balbiani denies for this stage the ...
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General Conclusions . Without attempting to compare at length the develop- ment of the spiders with that of other Arthropoda , I propose to point out a few features in the development of spiders , which appear to show that the Arachnida ...
General Conclusions . Without attempting to compare at length the develop- ment of the spiders with that of other Arthropoda , I propose to point out a few features in the development of spiders , which appear to show that the Arachnida ...
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... ment of the Araneina . PLATE XIX . Complete List of Reference Letters . ch . g . Ganglion of cheliceræ . c . I. Caudal lobe . ch . Cheliceræ . pd . Pedipalpi . pr . l . Præoral lobe . pp . pp . etc. Provisional appendages . p . c ...
... ment of the Araneina . PLATE XIX . Complete List of Reference Letters . ch . g . Ganglion of cheliceræ . c . I. Caudal lobe . ch . Cheliceræ . pd . Pedipalpi . pr . l . Præoral lobe . pp . pp . etc. Provisional appendages . p . c ...
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... ment k und in vier Rumpfsegmente : erstes , zweites , drittes und viertes . Die Cölomsäcke sind hier der Deutlichkeit halber bis auf das letzte Paar weggelassen , um einen besseren Überblick von dem Darmtractus zu geben . Ferner lässt ...
... ment k und in vier Rumpfsegmente : erstes , zweites , drittes und viertes . Die Cölomsäcke sind hier der Deutlichkeit halber bis auf das letzte Paar weggelassen , um einen besseren Überblick von dem Darmtractus zu geben . Ferner lässt ...
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Página 61 - ... illustration, which we have only to go into the garden to find. There we may see in abundance what is now upon the screen — the webs of those beautiful geometrical spiders. The radial threads are smooth, like the one you saw a few minutes ago, but the threads that go round and round, are beaded. The spider draws these webs slowly, and at the same time pours upon them a liquid, and still further to obtain the effect of launching a liquid cylinder in space, he, or rather she, pulls it out like...