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acid action added albumen alcohol allowed amount appear applied artistic attention bath become better called camera carbon cause collodion colour containing Correspondents course dark described desired developer direction dissolved effect employed exhibited experience exposure face fact fixing gelatine give given glass grains hand important interest iron kind less light look matter means meeting method minutes nature necessary negative never nitrate object observations obtained once operation ordinary ounce paper photographic Photographic Society picture piece plate portrait position possible practical prepared present prints probably produced question reason received recently removed rendered salt secure seen sensitive shadows side silver Society solution studio success sufficient surface taken thing tion toning transparent varnish washed whole
Page 214 - The man that hath no music in himself, Nor is not moved with concord of sweet sounds, Is fit for treasons, stratagems and spoils; The motions of his spirit are dull as night And his affections dark as Erebus: Let no such man be trusted.
Page 71 - Few like Rembrandt knew how' to improve an accident into a beauty, or give importance to a trifle. If ever he had a master, he had no followers. Holland was not made to comprehend his power : the succeeding school consisted of colourists, content to tip the cottage, the hamlet, the boor, the ale-pot, the shambles, and the haze of winter, with orient hues, or the glow of setting summer suns.
Page 196 - ... creating a violent pricking, suffusion of tears and irresistible sneezing. In time, the membrane begins to be thrown off, and portions of it are carried into the handkerchief used in blowing the nose; this process, when once started, goes on so rapidly that after a period of six or eight days the septum becomes thin, permeated with openings, and is ultimately detached altogether.
Page 273 - My own impression is that the repulsion accompanying radiation is directly due to the impact of the waves upon the surface of the moving mass, and not secondarily through the intervention of air-currents, electricity, or evaporation and condensation.
Page 5 - Having thus described the nature of my invention, and the manner of performing the same, I would have it understood that I do not confine myself to the...
Page 26 - Every seminary of learning may be said to be surrounded with an atmosphere of floating knowledge, where every mind may imbibe somewhat congenial to its own original conceptions. Knowledge, thus obtained, has always something more popular and useful than that which is forced upon the mind by private precepts, or solitary meditation. Besides, it is generally found, that a youth more easily receives instruction from the companions of his studies...
Page 19 - ... varying according to the amount of exposure. A tint of the decomposed vanadate, which is of so slight an amount as to be with difficulty distinguished from the whiteness of the paper, will, by immersion in the silver nitrate, be toned so as to exhibit a very perceptible tint.
Page 273 - Whether the aetherial waves actually strike the substance moved, or whether at that mysterious boundary-surface separating solid from gaseous matter there are intermediary layers of condensed gas which, taking up the blow, pass it on to the layer beneath, are problems the solution of which must be left to further research.
Page 196 - ... be left in contact with the wound, the caustic character of the salt is brought out intensely, the cutaneous tissue is decomposed, and violent inflammation is established. These symptoms are accompanied with intense pain, especially in winter, when the cold is severe ; the action of the salt does not cease until the cauterization has penetrated to the bone.
Page 176 - THE AERONAUTICAL SOCIETY OF GREAT BRITAIN, FOR THE YEAR 1873, Containing an Account of the Proceedings, and a Selection from the Papers and Communications received by the Society during the year, with concluding Remarks upon the present state of the Science. THE Annual...