Proceedings of the American Academy of Arts and Sciences, Volumen5Metcalf and Company, 1862 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
Dentro del libro
Resultados 1-5 de 29
Página 52
... cent of lead . The question naturally suggested itself whether lead might not thus find its way into American silver coin , and to deter- mine this point we have analyzed several American coins , as specified in the following table ...
... cent of lead . The question naturally suggested itself whether lead might not thus find its way into American silver coin , and to deter- mine this point we have analyzed several American coins , as specified in the following table ...
Página 53
... cent of Lead Weight of PbO , SO3 found . BaO , SO3 of column in the Coin . Corre- sponding weight of Pb . Corre- sponding per cent of Lead in the Coin . Grammes . Grammes . ( 3 ) . Grammes . 1 American half - dollar of 1824 . 13.2936 ...
... cent of Lead Weight of PbO , SO3 found . BaO , SO3 of column in the Coin . Corre- sponding weight of Pb . Corre- sponding per cent of Lead in the Coin . Grammes . Grammes . ( 3 ) . Grammes . 1 American half - dollar of 1824 . 13.2936 ...
Página 54
... cent of lead which that zine may be expected to contain , are both known quantities . Professor Booth says that an ... cent of lead , § Amount of lead in 6.742 gram . zinc , if the zinc contains 0.494 per cent of lead , § . 11.190 gram ...
... cent of lead which that zine may be expected to contain , are both known quantities . Professor Booth says that an ... cent of lead , § Amount of lead in 6.742 gram . zinc , if the zinc contains 0.494 per cent of lead , § . 11.190 gram ...
Página 60
... cent of lead is utterly unfit for manufacturing purposes , since it cannot be worked at any temperature . Now the least amount of lead which we found in fifty cents ' worth of American silver is 0.0253 gram . in 10 half - dimes of 1853 ...
... cent of lead is utterly unfit for manufacturing purposes , since it cannot be worked at any temperature . Now the least amount of lead which we found in fifty cents ' worth of American silver is 0.0253 gram . in 10 half - dimes of 1853 ...
Página 62
... cent of lead in a silver coin of Hadrian . The greatest percentage of lead observed by Brüel ( the author of the remark just quoted ) was only 0.12 . It is probable , however , that the methods of analysis none of which are recorded ...
... cent of lead in a silver coin of Hadrian . The greatest percentage of lead observed by Brüel ( the author of the remark just quoted ) was only 0.12 . It is probable , however , that the methods of analysis none of which are recorded ...
Otras ediciones - Ver todas
Términos y frases comunes
4to pamph 8vo pamph Academy acheniis acuminatis acutis antimony apice Apothecia appears atomic weight attenuatis basi Benth Bonnæ Boston brevibus brevioribus breviter calyce calyx capitulis capsula Captain Rodman caule chloride chromate chromate of chromic chromate of potash chrome alum chromic oxide chromium Class collection corolla Cr₂O3 CrO3 demum diameter disk Dissertatio exciple Feejee Islands fere floribus flowers Folia foliis formula fruit Gaud genus glabra Gray Greek Hook inch integerrimis Kauai lanceolatis Latin leaves length less lichen ligulis linearibus lobes lobis London longiores longioribus manganate margin nitric acid nunc Oahu oblongis obtusis ovatis oxygen pappo pappus parvis paullo pedicellis pedunculis petiolatis petiolum PHYLLOSTEGIA plant precipitate Professor publice defendet radial pieces ramis Royal sæpius Sandwich Islands Sciences sessilibus Society solution species specimens Sporæ spores sporoblasts Subjunctive subtus Thallus tion Torr tubo utrinque weight δὲ καὶ τὰ τὴν τῆς τὸ τοῦ τῶν
Pasajes populares
Página 228 - Of Law there can be no less acknowledged than that her seat is the bosom of God ; her voice the harmony of the world. All things in heaven and earth do her homage ; the very least as feeling her care, and the greatest as not exempted from her power.
Página 101 - Besides, independently of that delight and vanity which I have described, it is the peculiar and perpetual error of the human intellect to be more moved and excited by affirmatives than by negatives; whereas it ought properly to hold itself indifferently disposed towards both alike. Indeed in the establishment of any true axiom, the negative instance is the more forcible of the two.
Página 227 - Yet are thy skies as blue, thy crags as wild; Sweet are thy groves, and verdant are thy fields, Thine olive ripe as when Minerva smiled, And still his...
Página 10 - The fundamental idea of Ritter's whole geographical writings — still to use the language of our colleague, with some condensation — is "a strong belief that our globe, like the totality of creation, is a great organism, the work of an All-wise Intelligence, — an admirable structure, all the parts of which are purposely shaped and arranged, and mutually dependent, and by the will of the Maker fulfil, like organs, specific functions, which combine themselves into a common life. But with Ritter...
Página 379 - ... by which the varied, complicated, but necessary motions of the supply and working pistons are regulated and connected with each other and the fly-wheel. The minority recommend that the Rumford Medal be awarded to Mr. Ericsson for his improvements in the management of heat, particularly as shown in his air engine of 1858. EN HORSFORD, СЛМВКШОЕ, April 8, 1862.
Página 44 - Swallow. Geological Report of the Country along the Line of the Southwestern Branch of the Pacific Railroad, State of Missouri To which is prefixed a Memoir of the Pacific Railroad.
Página 267 - SURYA-SIDDHANTA (Translation of the): A Text-book of Hindu Astronomy, with Notes and an Appendix, containing additional Notes and Tables, Calculations of Eclipses, a Stellar Map, and Indexes. By WD WHITNEY.
Página 95 - Rost, in his Griechische Grammatik, § 118, says : "The so-called Optative is nothing but a peculiar form of the Subjunctive, and stands to the Greek Subjunctive in the same relation as in other languages the Imperfect and Pluperfect Subjunctive to the Present and Perfect." Donaldson in his New Cratylus (p. 617, 2d ed.) says: "It has long been felt by scholars on syntactical grounds, that, considered in their relations to each other and to the other moods, they [the Subjunctive and Optative] must...
Página 47 - The Motions of Fluids and Solids relative to the Earth's Surface ; comprising Applications to the Winds and the Currents of the Ocean.
Página 101 - The human understanding when it has once adopted an opinion (either as being the received opinion or as being agreeable to itself) draws all things else to support and agree with it. And though there be a greater number and weight of instances to be found on the other side, yet these it either neglects and despises, or else by some distinction sets aside and rejects; in order that by this great and pernicious predetermination the authority of its former conclusions may remain inviolate.