Proceedings of the American Academy of Arts and Sciences, Volumen1American Academy of Arts and Sciences., 1848 |
Dentro del libro
Resultados 1-5 de 17
Página 30
... tube , fitted with a reed and blown by means of bellows , which , of a certain length , gave the vowel I ( ee ) ; of another definite length , the vowel E ( a ) ; of another , the vowel A ( ah ) ; of another , O ; and of another ...
... tube , fitted with a reed and blown by means of bellows , which , of a certain length , gave the vowel I ( ee ) ; of another definite length , the vowel E ( a ) ; of another , the vowel A ( ah ) ; of another , O ; and of another ...
Página 165
... tube and machinery arrived on the 11th of last month . We had prepared for the support of this instrument a stone pier , composed of massive blocks of granite , resting on a bed of hydraulic cement , made with coarse gravel , which ...
... tube and machinery arrived on the 11th of last month . We had prepared for the support of this instrument a stone pier , composed of massive blocks of granite , resting on a bed of hydraulic cement , made with coarse gravel , which ...
Página 185
... tubes arranged for the purpose ; this velocity being measured directly , by introducing chlorine gas into the base of the ... tube . Professor Peirce gave some account of his computation of the mass of Neptune from the motions of its ...
... tubes arranged for the purpose ; this velocity being measured directly , by introducing chlorine gas into the base of the ... tube . Professor Peirce gave some account of his computation of the mass of Neptune from the motions of its ...
Página 310
... tube through which it passes . These resistances are not constant ; they increase as the perimeter and length of the tube directly , and also as the square of the velocity ; these , it is obvious , cannot be measured where they do not ...
... tube through which it passes . These resistances are not constant ; they increase as the perimeter and length of the tube directly , and also as the square of the velocity ; these , it is obvious , cannot be measured where they do not ...
Página 311
... tube . For this purpose the ventilator has through it , or attached to its side , a corresponding tube of the same diameter . The connection between these two tubes is completed by a glass tube 4 inches long and 2 inches in diameter ...
... tube . For this purpose the ventilator has through it , or attached to its side , a corresponding tube of the same diameter . The connection between these two tubes is completed by a glass tube 4 inches long and 2 inches in diameter ...
Otras ediciones - Ver todas
Términos y frases comunes
1st Limb 66 66 Date Academy alpine apices apoth apothecia Aquilæ Arctic America Arietis 66 becoming at length blast Bond Cancri Capella Capricorni cartilagineous Ceti comet cone crust Cygni D's 1st Limb D's 2d Limb diameter Diff disk England fertile fibrillose Floerk foliaceous Fomalhaut fuscescent fuscous Geminorum Geminorum 66 glaucescent Halsey Herb Hoffm Hook Hydræ hypothallus inches laciniæ lar A. R. h. m. Lecidea Leonis 66 Leverrier Lich Lichen Lichenogr lobes Lyræ membranaceous Meridian Passage Muhl naked Name of Object Neptune Northward to Arctic observations Observatory orbit Orionis 66 pamph Parmelia Pegasi Pennsylvania Piscium 66 planet podetia Procyon Professor Peirce Rocks Sagittarii Schær Scorpii scyphi Seconds of Tabu setis side Sidereal Sirius species squamulose Tauri Tauri 66 thalline margin thallus triangle Trunks tube Tuckerm Uranus velocity ver's initial Virginis 66 White Mountains York
Pasajes populares
Página 186 - The volumes of the memoirs to be exchanged for the transactions of literary and scientific societies, and copies to be given to all the colleges and principal libraries in this country. One part of the remaining copies may be offered for sale ; and the other carefully preserved, to form complete sets of the work, to supply the demand from new institutions.
Página 186 - II. — By appropriating a part of the income, annually, to special objects of research, under the direction of suitable persons. 1. The objects, and the amount appropriated, to be recommended by counsellors of the Institution. 2. Appropriations in different years to different objects, so that, in course of time, each branch of knowledge may receive a share. 3. The results obtained from these appropriations to be published: with the memoirs before mentioned, in the volumes of the Smithsonian Contributions...
Página 187 - Solution of experimental problems, such as a new determination of the weight of the earth, of the velocity of electricity and of light; chemical analyses of soils and plants; collection and publication of articles of science, accumulated in the offices of government.
Página 192 - The committee' would remark, in conclusion, that, in a plan of operations of this kind, very much depends upon the activity and intelligence with which it is administered. The character of the Board of Regents is a sufficient warrant for the prudence and good judgment which will watch over the general interests of the foundation ; while the reputation of the Secretary and his assistant, the Librarian, is so well established in their respective departments, as to render any tribute from the committee...
Página 186 - Each memoir presented to the Institution to be submitted for examination to a commission of persons of reputation for learning in the branch to which the memoir pertains; and to be accepted for publication only in case the report of this commission is favorable.
Página 31 - Etymologies are at present very uncertain; but such as they are, the old books would still preserve them, and etymologists would there find them. Words in the course of time change their meanings, as well as their spelling and pronunciation, and we do not look to etymology for their present meanings. If I should call a man a knave and a villain, he would hardly be satisfied with my telling him, that one of the words originally signified only a lad or servant; and the other an under-ploughman, or...
Página 27 - After learning the five sounds here given, if the learner should read in Scott an account of a feast at a Saxon's table, he would have to guess five times at the pronunciation of dais, and each time wrong. The written language is continually misleading thus, and it may be safely said that the sound of a word is learnt, not through the aid of the vowels, but in spite of them. Our language is full. of rules, and still more of exceptions. A true alphabet would require no rules, and it would admit of...
Página 155 - On the Growth of Plants in closely glazed Cases. 8vo. London, 1842.
Página 32 - That distinction is already destroyed in pronouncing them, and you rely on the sense alone of the sentence to ascertain which of the several words similar in sound we intend. If this is sufficient in the rapidity of discourse it will be much more so in written sentences, which may be read leisurely and attended to more particularly in case of difficulty than you can attend to a past sentence while a speaker is hurrying you along with new ones. Your third inconvenience is that "all the books already...
Página 188 - The extraordinary effect even of an honorary inducement is seen in the case of the medal offered by the king of Denmark for the discovery of telescopic comets. On these principles it may be hoped, that, by offering a moderate pecuniary compensation for researches of real merit, valuable contributions to knowledge will be produced ; while their publication will tend directly to the diffusion of knowledge. An encouragement somewhat similar, toward the...