Quarterly Journal of Science: 1870, Volumen7John Churchill and Sons, 1870 |
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Página 11
... obtained by a con- cave reflector . The following lecture illustration of this fact was shown by the writer two years ago at the Royal Society of Dublin . Two parabolic mirrors ss were placed as in Fig . 3. At c , in the focus of , s ...
... obtained by a con- cave reflector . The following lecture illustration of this fact was shown by the writer two years ago at the Royal Society of Dublin . Two parabolic mirrors ss were placed as in Fig . 3. At c , in the focus of , s ...
Página 16
... obtain a real optical expression of the musical intervals . By reflecting a beam of light from one vibrating tuning fork to another placed at right angles , curves of light are obtained , which vary according to the combination of forks ...
... obtain a real optical expression of the musical intervals . By reflecting a beam of light from one vibrating tuning fork to another placed at right angles , curves of light are obtained , which vary according to the combination of forks ...
Página 23
... obtained . The theoretical value of sewage has been calculated by some of our most eminent chemists and others , and the results arrived at vary from 1d . to upwards of 2d . per ton . Practically , however , it has been found that this ...
... obtained . The theoretical value of sewage has been calculated by some of our most eminent chemists and others , and the results arrived at vary from 1d . to upwards of 2d . per ton . Practically , however , it has been found that this ...
Página 27
... obtained annually ; and on one occasion as much as 61 tons were obtained in the year at the Lodge Farm , Barking . At Rugby some experiments have been made in the growth of oats , and the results reported to be of a most satisfactory ...
... obtained annually ; and on one occasion as much as 61 tons were obtained in the year at the Lodge Farm , Barking . At Rugby some experiments have been made in the growth of oats , and the results reported to be of a most satisfactory ...
Página 29
... obtained , together with some exquisite photo- graphs of the phenomena of totality , & c . These pictures show , in the first place , very fine definition in the telescope employed , as the roughness or mountainous character of the ...
... obtained , together with some exquisite photo- graphs of the phenomena of totality , & c . These pictures show , in the first place , very fine definition in the telescope employed , as the roughness or mountainous character of the ...
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Pasajes populares
Página 202 - CONTRIBUTIONS RELATING TO THE CAUSATION AND PREVENTION OF DISEASE, AND TO CAMP DISEASES; TOGETHER WITH A REPORT OF THE DISEASES, ETC., AMONG THE PRISONERS AT ANDERSONVILLE, GA.
Página 28 - First Report of the Commissioners appointed to inquire into the best means of preventing the pollution of Rivers (River Thames).
Página 439 - Notes of a Course of Nine Lectures on Light, delivered at the Royal Institution. , By John Tyndall, FRS Crown 8vo. is. sewed, or is. 6d. cloth. Notes of a Course of Seven Lectures on Electrical Phenomena and Theories, delivered at the Royal Institution.
Página 295 - The CLIMATE of the SOUTH of FRANCE as SUITED to INVALIDS; with Notices of Mediterranean and other Winter Stations. By CT WILLIAMS, MAMD Oxon. Assistant-Physician to the Hospital for Consumption at Brompton. Second Edition. Crown Svo. 6s. REPORTS on the PROGRESS of PRACTICAL and SCIENTIFIC MEDICINE in Different Parts of the World.
Página 346 - Here bring the last gifts ! — and with these The last lament be said ; Let all that pleased, and yet may please, Be buried with the dead. ' Beneath his head the hatchet hide, That he so stoutly swung ; And place the bear's fat haunch beside — The journey hence is long...
Página 439 - Other Worlds than Ours ; The Plurality of Worlds Studied under the Light of Recent Scientific Researches.