The Scientific Monthly, Tom 12James McKeen Cattell American Association for the Advancement of Science, 1920 |
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Strona 19
... streams , to afford refuge for wild life , to maintain soil fertility and provide recreation grounds for the public ; under our present forest policy and forest laws this recognition is not checking forest devasta- tion and there is no ...
... streams , to afford refuge for wild life , to maintain soil fertility and provide recreation grounds for the public ; under our present forest policy and forest laws this recognition is not checking forest devasta- tion and there is no ...
Strona 37
... stream , the blood vessels co - operate , giving an increased blood pressure . The blood itself changes its constituency . The deepened breathing , the quickened heart , the heightened blood pressure are all brought about by stimulating ...
... stream , the blood vessels co - operate , giving an increased blood pressure . The blood itself changes its constituency . The deepened breathing , the quickened heart , the heightened blood pressure are all brought about by stimulating ...
Strona 57
... stream of water from a head which does not sink but perhaps rises slowly . In this figure the effect of the environment is represented by the action of the gate through the slow opening of which an increasing portion of the power in the ...
... stream of water from a head which does not sink but perhaps rises slowly . In this figure the effect of the environment is represented by the action of the gate through the slow opening of which an increasing portion of the power in the ...
Strona 70
... stream of men who rise from the ranks , and a large proportion of the suc- cessful men , who acquire wealth and position and thus become prominent in society or in politics , are chosen in this way . These are made up , in part , of men ...
... stream of men who rise from the ranks , and a large proportion of the suc- cessful men , who acquire wealth and position and thus become prominent in society or in politics , are chosen in this way . These are made up , in part , of men ...
Strona 91
... streams flowing in from the old land at the east . Then for a long time the first forest must have been flooded by the waters , probably by the rising of the sea which deposited the 60 feet of overlying rocks , until another retreat of ...
... streams flowing in from the old land at the east . Then for a long time the first forest must have been flooded by the waters , probably by the rising of the sea which deposited the 60 feet of overlying rocks , until another retreat of ...
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Popularne fragmenty
Strona 151 - At half past nine by the meet'n'-house clock,— Just the hour of the Earthquake shock! —What do you think the parson found, When he got up and stared around? The poor old chaise in a heap or mound, As if it had been to the mill and ground! You see, of course, if you're not a dunce, How it went to pieces all at once,— All at once, and nothing first,— Just as bubbles do when they burst.
Strona 151 - n' all the kentry raoun'; It should be so built that it couldn' break daown: — "Fur," said the Deacon, "'t's mighty plain Thut the weakes' place mus' Stan' the strain; 'N' the way t' fix it, uz I maintain, Is only jest T' make that place uz strong uz the rest.
Strona 140 - Spanish sailors with bearded lips, And the beauty and mystery of the ships, And the magic of the sea. And the voice of that wayward song Is singing and saying still: 'A boy's will is the wind's will, And the thoughts of youth are long, long thoughts.
Strona 280 - As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified form.
Strona 259 - ... ruptured, through the excessive charge of blood, unless the blood should somehow find its way from the arteries into the veins, and so return to the right side of the heart ; I began to think whether there might not be A MOTION, AS IT WERE, IN A CIRCLE.
Strona 146 - Ef you're arter folks o' gumption, You've a darned long row to hoe. Take them editors thet's crowin' Like a cockerel three months old, — Don't ketch any on 'em goin', Though they be so blasted bold; Aint they a prime lot o' fellers? 'Fore they think on't guess they'l sprout (Like a peach thet's got the yellers), With the meanness bustin' out. Wai, go 'long to help 'em stealin' Bigger pens to cram with slaves, Help the men thet's oilers dealin
Strona 147 - Then seems to come a hitch, — things lag behind, Till some fine mornin' Spring makes up her mind, An' ez, when snow-swelled rivers cresh their dams Heaped-up with ice thet dovetails in an' jams, A leak comes spirtin' thru some pin-hole cleft, Grows stronger, fercer, tears out right an...
Strona 145 - When Cuba's weeds have quite forgot The power of suction to resist, And claret-bottles harbor not Such dimples as would hold your fist, — When publishers no longer steal, And pay for what they stole before, — When the first locomotive's wheel Rolls through the Hoosac tunnel's bore ; — Till then let Gumming blaze away, And Miller's saints blow up the globe ; But when you see that blessed day, Then order your ascension robe...
Strona 142 - And further, by these, my son, be admonished : of making many books there is no end ; and much study is a weariness of the flesh.
Strona 259 - ... not finding it possible that this could be supplied by the juices of the ingested aliment without the veins on the one hand becoming drained, and the arteries on the other...