The Scientific Monthly, Tom 12James McKeen Cattell American Association for the Advancement of Science, 1920 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 7
... important phases , the history and origin of man . The field of the astronomer , with its myriad bodies of the heavens , presumably represents wide range in development of the stel- lar systems within our view . Yet , with all our ...
... important phases , the history and origin of man . The field of the astronomer , with its myriad bodies of the heavens , presumably represents wide range in development of the stel- lar systems within our view . Yet , with all our ...
Strona 14
... importance contributing to de- fense of the nation . Future research may also show possibility of large use of this supply through cultivation of the wild stock , thus making the desert an important area of production . History shows us ...
... importance contributing to de- fense of the nation . Future research may also show possibility of large use of this supply through cultivation of the wild stock , thus making the desert an important area of production . History shows us ...
Strona 21
... important effect upon values . Furthermore the segregation of the national forests which embrace about one fifth of the total forests of the country from the public domain has left the lumbermen no new fields to conquer , no new sources ...
... important effect upon values . Furthermore the segregation of the national forests which embrace about one fifth of the total forests of the country from the public domain has left the lumbermen no new fields to conquer , no new sources ...
Strona 23
... important class of basic resources . Although post - war conditions are to blame for the sudden jump in prices within the past year , a part of the increase must be credited to the rapidly increasing scarcity of commercial timber which ...
... important class of basic resources . Although post - war conditions are to blame for the sudden jump in prices within the past year , a part of the increase must be credited to the rapidly increasing scarcity of commercial timber which ...
Strona 24
James McKeen Cattell. important sources of the world's timber supply . Ultimately all our timber must come from second growth forests . Our attention , there- fore , must immediately be directed to the areas from which the old- growth ...
James McKeen Cattell. important sources of the world's timber supply . Ultimately all our timber must come from second growth forests . Our attention , there- fore , must immediately be directed to the areas from which the old- growth ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
American anatomy animals Aristotle atoms biological biologists bird body bogs botany bureau century chemical cicadas climate color Darwin death discovery earth eggs Empedocles Erasmus Darwin evidence evolution experiment experimental fact factors feet field figures fish force forest fossils function fundamental G. H. HARDY geological geometry germ cells granules hair idea important interest investigation J. J. Thomson knowledge known larvae laws Leeuwenhoek living mathematical matter ment methods microscope modern mountains nation Natural Selection observation organisms origin Origin of Species parthenogenesis Passenger Pigeon perfect number period phenomena physical physiology pigment plants possible present problems produced Professor progress pupae regarded resorts Risk Insurance rocks salmon scientific senescence SOCKEYE SALMON spawning species spermatozoon stream structure theory tion tissues tree University Wild Pigeon winter
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...