Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Band 32American Philosophical Society., 1893 |
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Seite 361
... substage is smooth and distinctly marked off from the succeed- ing , probably metanepionic substage , which shows both longitudinal ridges and transverse bands of growth . The metane- pionic substage is marked off below by a more ...
... substage is smooth and distinctly marked off from the succeed- ing , probably metanepionic substage , which shows both longitudinal ridges and transverse bands of growth . The metane- pionic substage is marked off below by a more ...
Seite 402
... substage . This substage is more or less similar in all the nautiloids on account of the existence of the cicatrix on the point of the apex of the conch and the surrounding comparatively smooth area which is , as a rule , ellip- tical ...
... substage . This substage is more or less similar in all the nautiloids on account of the existence of the cicatrix on the point of the apex of the conch and the surrounding comparatively smooth area which is , as a rule , ellip- tical ...
Seite 403
... substage among the nautiloids under the descriptive name of the " asiphonula , " but have since substituted the term , Protosipho- nula . Among ammonoids this substage has been forced back into the embryonic stage and has practically ...
... substage among the nautiloids under the descriptive name of the " asiphonula , " but have since substituted the term , Protosipho- nula . Among ammonoids this substage has been forced back into the embryonic stage and has practically ...
Seite 404
... substage is indicated by the presence of the cæcum ly- ing within the apex , and this is formed by the funnel of the first septum and in association with the first septum is universal among Cephalopoda , with the exception of some ...
... substage is indicated by the presence of the cæcum ly- ing within the apex , and this is formed by the funnel of the first septum and in association with the first septum is universal among Cephalopoda , with the exception of some ...
Seite 405
... substage has a large siphuncle compared with the ventro- dorsal axis , and this has been called the " macrosiphonula . " The remarkable observations of Henry Brooks have amply sustained these statements made in previous publications ...
... substage has a large siphuncle compared with the ventro- dorsal axis , and this has been called the " macrosiphonula . " The remarkable observations of Henry Brooks have amply sustained these statements made in previous publications ...
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Häufige Begriffe und Wortgruppen
abdominal legs abdominal segments amber AMER American Philosophical Society Ammonoidea ammonoids apical arcuate Bache Belemnoidea Blodget Brunstatt Cladura coils Colorado Cyttaromyia Dicranomyia discal cell electrical Erioptera experiments fauna fifth posterior cell Florissant fore femora forms fossil fourth longitudinal vein Franklin genera genus Girard College Gonomyia half as long Heer Henry hind femora hyponome inner marginal cell Kaiser Köprülü Lagoa Length of wings Limnobia Limnobinæ Limnophila Loew long as broad longitudinal vein magnet marginal cross vein Meteorological middle nature Nautiloidea neuration Observations origin Osten Sacken pair Petiole Philadelphia PHILOS plates PROC Prof protoconch Radoboj Scudd second longitudinal vein second posterior cell shell shows Silurian siphuncle slender species specimen Stadt stages stigma structures subcostal cross vein submarginal cell Sultan Ibrahîm tarsi tertiary third longitudinal vein third posterior cell tibiæ tion Tipula Tipulidæ tsä twice as long Vezier Köprülü wire XXXII
Beliebte Passagen
Seite 108 - Spirits, at the same time, are to be fired by a spark sent from side to side through the river without any other conductor than the water ; an experiment which we some time since performed to the amazement of many.
Seite 104 - Society of London, a present of a glass tube with some account of the use of it in making such experiments. I eagerly seized the opportunity of repeating what I had seen at Boston; and, by much practice...
Seite 110 - Make a small cross of two light strips of cedar, the arms so long as to reach to the four corners of a large thin silk handkerchief when extended ; tie the corners of the handkerchief to the extremities of the cross, so you have the body of a kite ; which, being properly accommodated with a tail, loop, and string, will rise in the air, like those made of paper; but this being of silk is fitter to bear the wet and wind of a thundergust without tearing.
Seite 103 - Collinson, Fellow of the Royal Society of London, a present of a glass tube, with some account of the use of it in making such experiments.
Seite 113 - While you, Great George, for safety hunt, And sharp conductors change for blunt, The empire's out of joint. Franklin a wiser course pursues, And all your thunder fearless views By keeping to the point.
Seite 113 - I have never entered into any controversy in defence of my philosophical opinions; I leave them to take their chance in the world. If they are right, truth and experience will support them ; if wrong, they ought to be refuted and rejected.
Seite 242 - Report of the Chief Signal Officer to the Secretary of War for the year ending June 30, 1871.
Seite 113 - The king's changing his pointed conductors for blunt ones is, therefore, a matter of small importance to me. If I had a wish about it, it would be that he had rejected them altogether as ineffectual. For it is only since he thought himself and family safe from the thunder of heaven that he dared to use his own thunder in destroying his innocent subjects...
Seite 106 - Tis true the sphere does not turn so swift as when the great wheel is used ; but swiftness we think of little importance, since a few turns will charge the vial sufficiently.
Seite 111 - To the end of the twine, next the hand, is to be tied a silk ribbon, and, where the silk and twine join, a key may be fastened.