The Scientific Monthly, Volumul 15James McKeen Cattell American Association for the Advancement of Science, 1922 |
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Pagina 7
... reason . The climatic nature of a ring is its most ob- vious feature . There is a gradual cessation of the activity of the tree owing to lowered temperature or diminished water supply . This causes the deposition of harder material in ...
... reason . The climatic nature of a ring is its most ob- vious feature . There is a gradual cessation of the activity of the tree owing to lowered temperature or diminished water supply . This causes the deposition of harder material in ...
Pagina 8
... reason . Out of perhaps two hundred near Flagstaff , none have been discarded for this reason . Neodly a hundred yellow pines and spruces from northwestern New Mexico have produced no single case of this difficulty . The sequoias from ...
... reason . Out of perhaps two hundred near Flagstaff , none have been discarded for this reason . Neodly a hundred yellow pines and spruces from northwestern New Mexico have produced no single case of this difficulty . The sequoias from ...
Pagina 12
... reason , I have visited the site of every dry - climate group and indeed have examined the stumps of almost every tree in my collection . It was found that dry - climate trees which grew in basins with a large and constant water supply ...
... reason , I have visited the site of every dry - climate group and indeed have examined the stumps of almost every tree in my collection . It was found that dry - climate trees which grew in basins with a large and constant water supply ...
Pagina 15
... do , find a response to each . For that reason , I have felt quite justified in seeking first the correlation with moisture . A temperature cor- relation doubtless exists and in fact has been noted , THE ANNUAL RINGS OF TREES 15.
... do , find a response to each . For that reason , I have felt quite justified in seeking first the correlation with moisture . A temperature cor- relation doubtless exists and in fact has been noted , THE ANNUAL RINGS OF TREES 15.
Pagina 22
... reason why the im- pression has been gained that tropical climates are uniform in other respects . Another reason for this common belief is the fact that the climatic data concerning the tropics are chiefly available in the form of ...
... reason why the im- pression has been gained that tropical climates are uniform in other respects . Another reason for this common belief is the fact that the climatic data concerning the tropics are chiefly available in the form of ...
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Alte ediții - Afișează-le pe toate
Termeni și expresii frecvente
abundant Acromyrmex Albatross algæ American amount animals ants aphid atoms Australia average BAUSCH & LOMB bees benthos biological birds body California cells cent climate colony concepts course earth eggs electrons elements energy Europe evaporation evidence evolution fact feed female fish fisheries forest fungus genera habit heat honey-bee human immigration important insects intelligence interest Island Italian J. J. Thomson labor land larva larvæ latitudes less lice living mass material matter measure Meliponine mental meter method Myrmicine nature nest North observed ocean organisms parasitoid Photograph plankton plants present primitive problem produced Professor progress Proteaceae queen race racial rainfall reason regions scientific social wasps South South Island species substance temperature tests theory things thorium tion to-day trees trench fever trophallaxis tropical United University wasps women workers Zostera
Pasaje populare
Pagina 209 - Now go and smite Amalek, and utterly destroy all that they have, and spare them not ; but slay both man and woman, infant and suckling, ox and sheep, camel and ass.
Pagina 60 - There they stood, ranged along the hill-sides — met To view the last of me, a living frame For one more picture ! in a sheet of flame I saw them and I knew them all. And yet Dauntless the slug-horn to my lips I set And blew " Childe Roland to the Dark Tower came...
Pagina 205 - At the mouth of two witnesses, or three witnesses, shall he that is worthy of death be put to death; but at the mouth of one witness he shall not be put to death.
Pagina 133 - ... and thus I got some very rare species. No poet ever felt more delighted at seeing his first poem published than I did at seeing, in Stephens' ' Illustrations of British Insects,' the magic words,
Pagina 205 - And this is the case of the slayer, which shall flee thither, that he may live : Whoso killeth his neighbour ignorantly, whom he hated not in time past ; as when a man goeth into the wood with his neighbour to hew wood, and his hand fetcheth a stroke with the axe to cut down the tree, and the head slippeth from the helve, and lighteth upon his neighbour, that he die ; he shall flee unto one of those cities, and live...
Pagina 211 - ... that there is some question as to the earth or the sky, or the other elements of this world . . . respecting which one who is not a Christian has knowledge derived from most certain reasoning or observation : and it is very disgraceful and mischievous, and of all things to be carefully avoided, that a Christian, speaking of such matters as being according to the Christian scriptures, should be heard by an unbeliever talking such nonsense that the unbeliever, perceiving him to be as wide from...
Pagina 209 - Then came the word of the LORD unto Samuel, saying, It repenteth me that I have set up Saul to be king : for he is turned back from following me, and hath not performed my commandments.
Pagina 134 - I was then utterly astonished at Sedgwick not being delighted at so wonderful a fact as a tropical shell being found near the surface in the middle of England. Nothing before had ever made me thoroughly realise, though I had read various scientific books, that science consists in grouping facts so that general laws or conclusions may be drawn from them.
Pagina 134 - ... if really embedded there it would be the greatest misfortune to geology, as it would overthrow all that we know about the superficial deposits of the Midland Counties.
Pagina 188 - Mayor, director of the department of marine biology of the Carnegie Institution of Washington, have added greatly to the knowledge of that remote possession of ours in recent years.