The American Journal of Science and Arts, Volumen6S. Converse, 1848 |
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Resultados 1-5 de 100
Página 59
... Obtained , 25.87 : 16-352 * Required , 25.00 : 16.66 S ( R ) = 30 · 10 Mg , 6 · 86 Fe , 0 · 87 Ca , a trace sides 1.11 Al . Deducting this latter as a ( R ) Si . of Mn , 9.83 É , be- silicate , the oxygen ratio becomes = 25.52 : 16 · 35 ...
... Obtained , 25.87 : 16-352 * Required , 25.00 : 16.66 S ( R ) = 30 · 10 Mg , 6 · 86 Fe , 0 · 87 Ca , a trace sides 1.11 Al . Deducting this latter as a ( R ) Si . of Mn , 9.83 É , be- silicate , the oxygen ratio becomes = 25.52 : 16 · 35 ...
Página 63
... obtained from anal- ysis than what is given above . But in that case the formula would be , 2 ( R ) Si + ( R ) Al , which does not , it is true , appear probable , inasmuch as the silica and the alumina are therein combined with equal ...
... obtained from anal- ysis than what is given above . But in that case the formula would be , 2 ( R ) Si + ( R ) Al , which does not , it is true , appear probable , inasmuch as the silica and the alumina are therein combined with equal ...
Página 70
... obtained by him was = 39-27 : 5 · 79 : 4:55 , but this analysis gave an ex- cess of 3.948 . The stone appears indeed worthy of its name ! * Knox moreover examined a pitchstone from Newry , whose oxy- gen ratio was 37 · 82 : 5 · 37 : 4 ...
... obtained by him was = 39-27 : 5 · 79 : 4:55 , but this analysis gave an ex- cess of 3.948 . The stone appears indeed worthy of its name ! * Knox moreover examined a pitchstone from Newry , whose oxy- gen ratio was 37 · 82 : 5 · 37 : 4 ...
Página 71
... obtained . ( R ) in this bole = 25.86 H , 3.90 Ca. 9. Nontronite , from Villefranche . 21.13 11-12 : 7.73 ) : 22.00 11.00 : 7.33 S ( Dufrénoy . ) ( R ) 2 Si + R Si . Essentially this is the formula of the preceding mineral . ( R ) ...
... obtained . ( R ) in this bole = 25.86 H , 3.90 Ca. 9. Nontronite , from Villefranche . 21.13 11-12 : 7.73 ) : 22.00 11.00 : 7.33 S ( Dufrénoy . ) ( R ) 2 Si + R Si . Essentially this is the formula of the preceding mineral . ( R ) ...
Página 83
... obtained from the Berlin botanical garden , but Nuttall's and Pursh's diagnoses do not permit a doubt about the identity of the species . I would not have looked for it under Cheilanthes . * WOODSIA . I cannot distinguish W. rufidula ...
... obtained from the Berlin botanical garden , but Nuttall's and Pursh's diagnoses do not permit a doubt about the identity of the species . I would not have looked for it under Cheilanthes . * WOODSIA . I cannot distinguish W. rufidula ...
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absorption according Algæ allantoin alumina analysis animals appears Archipelago atmosphere atoms bodies carbonic acid cent chlorite color compounds contains copper Copper Harbor cordierite corresponding cretaceous crystals decomposition deposits ethereo-ponderable exist experiments fact feet formula fossils geological gold Green gutta percha heat hornblende hydrate hydrochloric acid hydrogen inches Key West lake latter lime limestone liquid magnesia magnetic mass means memoir mercury metal meteoric mica miles mineral mountains nearly nitric acid observed obtained olivine oxyd oxygen oxygen ratio piculs plant plates polarization portion potash potassa precipitate present pressure produced Prof protoxyd of iron quantity remarkable river rocks salt sandstone SECOND SERIES serpentine silicate soda solution species specimens steam stone substance sulphate sulphuric acid surface tellurium temperature tion tube uric acid vapor vegetation vivianite volume waves wind Yellow
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Página 288 - LITERATURE AND THE FINE ARTS. 9. Modern literature. 10. The fine arts, and their application to the useful arts. 11. Bibliography. 12. Obituary notices of distinguished individuals.
Página 94 - And the poor beetle that we tread upon, In corporal sufferance finds a pang as great As when a giant dies.
Página 288 - Ethnological researches, particularly with reference to the different races of men in North America; also, explorations and accurate surveys of the mounds and other remains of the ancient people of our country.
Página 286 - To INCREASE KNOWLEDGE. It is proposed — 1. To stimulate men of talent to make original researches, by offering suitable rewards for memoirs containing new truths ; and, 2. To appropriate annually a portion of the income for particular researches, under the direction of suitable persons.
Página 288 - DETAILS OF THE PLAN FOR DIFFUSING KNOWLEDGE. I. By the publication of a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge not strictly professional. 1. These reports will diffuse a kind of knowledge generally interesting, but which, at present, is inaccessible to the public. Some of the reports may be published annually, others at longer intervals, as the income of the institution, or the changes in the branches...
Página 288 - ... are to be prepared by collaborators eminent in the different branches of knowledge. 3. Each collaborator to be furnished with the journals and publications, domestic and foreign, necessary to the compilation of his report; to be paid a certain sum for his labors, and to be named on the title-page of the report. 4. The reports to be published in separate parts, so that persons interested in a particular branch can procure the parts relating to it without purchasing the whole. 5. These reports...
Página 288 - The following are some of the subjects which may be embraced in the reports. I. PHYSICAL CLASS. 1. Physics, including astronomy, natural philosophy, chemistry, and meteorology. 2. Natural history, including botany, zoology, geology, &c. 3. Agriculture. 4. Application of science to arts. II. MORAL AND POLITICAL CLASS. 5. Ethnology, including particular history, comparative philology, antiquities, &c.
Página 329 - If any point be taken in the diameter of a circle which is not the centre, of all the straight lines which can be drawn from it to the circumference, the greatest is that in which the centre is, and the other part of that diameter is the least...
Página 289 - With reference to the collection of books, other than those mentioned above, catalogues of all the different libraries in the United States should be procured, in order that the valuable books first purchased may be such as are not to be found in the United States.
Página 379 - The valley is generally about twenty miles wide, and bordered on the east and west by mountain chains, continuations of the Rocky Mountains, which have received here different names, as Sierra Blanca, de los Organos, Oscura, on the eastern side, and Sierra do los Grullas, de Acha, de loi Mimbres, towards the west.