Proceedings of the American Academy of Arts and Sciences, Volumen60Metcalf and Company, 1925 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Academy ampere angle apparatus Ascension ASCENSION ISLAND atomic average axial axis basaltic bismuth Boston BRIDGMAN bromide bulb caesium calorimeter chap cleavage plane coil column Committee compensating cone copper correction crater Cross Hill crystal curve deflection determined diameter direction effect elastic constants electric Electrical Resistance equations equatorial error experimental experiments field Figure filter flow frequency germanium give glass Green Mountain Hill dome island kg/cm² latent heat lava length linear compressibility liquid longitudinal magnetic magnetometer measurements melting metals meters method nearly nickel observations obtained parallel Permalloy phenocrysts Plate plug polyps position pressure coefficient produced quartz ratio reversal Riding School riebeckite rotation rotor rubidium slope specific resistance specimen steel Table tellurium temperature coefficient tension tetrabromide thermal expansion thermometer tion trachyandesite trachyte transverse tube tuff values vapor velocity vertical volume White Hill wire zero zooxanthellae
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Página 507 - April, 1892, reprinted in his Chance, Love and Logic (edited by WR Cohen), 1923. A quotation: "I propose here to examine the common belief that every single fact in the universe is precisely determined by law. It must not be supposed that this is a doctrine accepted everywhere and at all times by all rational men. Its first advocate appears to have been Democritus, the
Página 50 - TiO, A1 2 0 3 Fe,0 3 FeO MgO CaO Na 2 0 K 2 0 H 2 0 PA
Página 244 - silver, the weights were substituted for the object weighed. In the case of the glass and the silver bromide the crucibles were substituted for similar counterpoises. A small quantity of impure radium bromide was kept in the balance case to prevent electrostatic effects. Vacuum corrections were applied as follows: TABLE II. Vacuum Corrections. Density Weights
Página 662 - Absorption in the work of teaching prevented him for several years from engaging deeply in further work of research. He spent his energy and his talents in building up courses of laboratory work, designing and making apparatus for instruction and in every way practicing with devotion the profession of a teacher. It is not too much to say
Página 232 - evaporation in platinum dishes was allowed to crystallize. Si nee the product was found to contain a trace of chloride it was r ecrystallized several times in platinum dishes until the chloride had been completely removed. Nitrogen.— This gas was prepared free from hydrogen by a modification of the Wanklyn process. Air was charged with ammonia and
Página 139 - the substance under investigation is preferably in the form of an approximately cylindrical rod, or rotor, which is mounted with its axis horizontal and in the magnetic prime vertical in a region in which the earth's magnetic field has been neutralized as nearly as practicable. In the methods of electromagnetic induction the intrinsic magnetic intensity of rotation
Página 495 - Chart Atlas of Complex Hyperbolic and Circular Functions," AE Kennelly. Harvard University Press, 1913 3rd Ed., 1924. 5. "Note on High-Frequency Wave Filters," GMB Shepherd. The Electrician, June 13, 1913, Vol. 71, pp.
Página 547 - Heft 2. (7) Kolacek: Ann. d. Phys. 13, 1, 1904. (8) Bulletin of Nat. Res. Counc. USA No. 18 on "Theories of Magnetism," p. 217. (9) HT Kalmus in publication of the Canadian Government entitled, "The Physical Properties of the Metal Cobalt.
Página 631 - Professor CR Lanman then introduced HRH the Prince of Chandaburi, with remarks on the relations between Siam and the United States. The following paper was presented by title: "A Further Study of the Polyhedral Shapes of Cells. I. The Stellate Cells of J uncus effusus; II. Cells of Human Adipose Tissue; III. Stratified Cells of Human Oral Epithelium,
Página 667 - Professor Trowbridge's personality was manifested not only in the intellectual activity which he exhibited, inspired, and fostered, but also in unselfish and constant devotion to the needs of his students and colleagues. Both traits of his character contributed toward the sentiment of respect and affection with which his memory will ever be cherished by those who came under his influence. Theodore Lyman. GEORGE CHANDLER