American Journal of Science and Arts, Bindi 61-701855 |
From inside the book
Niđurstöđur 1 - 5 af 39
Síđa 88
... convergence of the optic axes until he has formed the resultant image , and is able to view it steadily . He will ob- serve that this image seems to occupy a position outside of the window , and he will have the feeling that he is ...
... convergence of the optic axes until he has formed the resultant image , and is able to view it steadily . He will ob- serve that this image seems to occupy a position outside of the window , and he will have the feeling that he is ...
Síđa 89
... converge the eyes tor or to some point readily found , before or behind it , we see the result- ant image perfectly formed in that position . It is hardly neces- sary to say that , in the former case , the points of the twin figures ...
... converge the eyes tor or to some point readily found , before or behind it , we see the result- ant image perfectly formed in that position . It is hardly neces- sary to say that , in the former case , the points of the twin figures ...
Síđa 91
... convergence of the axes are united in a single stereoscopic resultant . When the component diagrams are farther apart or when the stage itself is moved to a greater dis- tance from A , the point of convergence proper to their union is ...
... convergence of the axes are united in a single stereoscopic resultant . When the component diagrams are farther apart or when the stage itself is moved to a greater dis- tance from A , the point of convergence proper to their union is ...
Síđa 92
... convergence is attained . After a little practice even this becomes unnecessary , as we can then at will direct the eyes as if gazing upon objects at various distances behind S. In this mode of combination , the picture of the object ...
... convergence is attained . After a little practice even this becomes unnecessary , as we can then at will direct the eyes as if gazing upon objects at various distances behind S. In this mode of combination , the picture of the object ...
Síđa 93
... convergence and refractive power by which we see the resultant image . A feature of great interest in the preceding experiments is the clearness and precision of the resultant image . This is equally true whether the image be formed ...
... convergence and refractive power by which we see the resultant image . A feature of great interest in the preceding experiments is the clearness and precision of the resultant image . This is equally true whether the image be formed ...
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acid action alloy angle anglesite animals antimony appear auroral auroral light axis binocular binocular vision branches carbonate carbonic acid centre chemical coast color combined composition compounds containing convergence copper corresponding Crustacea crystals of Sb curve diamagnetic direction distance east ecliptic currents Edward Forbes effect eggs experiments eyes fact feet formation galena Geological gossan hematite inches inclined Indies individual intersecting iron Lake lower magnetic mass means memoir miles mineral nature nearly objects observations obtained occur optic axes oxyd p. c. of zinc paper parallel passing perspective line plane plants plates portion position present Prof pyromorphite quartz radial currents regard Regents region remarkable Report resultant river rocks sandstone Sanguinarine Sb Zn Scapolite SECOND SERIES seen shoot species specimens stage stem stereoscope surface temperature tion trees upper variation vegetable vein vertical whole Wulfenite zinc Zodiacal Light
Vinsćlir kaflar
Síđa 4 - I mean stock to remain in this country, to the United States of America, to found at Washington, under the name of the Smithsonian Institution, an establishment for the increase and diffusion of knowledge among men.
Síđa 6 - ... as they shall deem best suited for the promotion of the purpose of the testator, anything herein contained to the contrary notwithstanding.
Síđa 1 - Institution" for the Increase and Diffusion of Knowledge among men, approved August 10, 1846, 9 Stat.
Síđa 149 - Report on the Agriculture and Geology of Mississippi; embracing a sketch of the Social and Natural History of the State, by BLC Wailes, Geologist of Mississippi, published by order of the Legislature.
Síđa 2 - Senate, to whom was referred the inquiry whether any, and if any, what, action of the Senate is necessary and proper in regard to the Smithsonian Institution ; made Feb.
Síđa 2 - House whether the Smithsonian Institution has been managed, and its funds expended, in accordance with the law establishing the Institution ; and whether any additional legislation be necessary to carry out the designs of its founders, and that said committee have power to send for persons and papers.
Síđa 242 - ... to be seen in the cabinets of Europe. 48. ANGLESITE. This mineral is found abundantly and in beautiful crystals at this locality. The magnificence of many of the specimens can only be realized by seeing those in Mr. Wheatley's cabinet. The crystals are remarkable for their size and transparency — in some instances they weigh nearly half a pound, being as transparent as rock crystal in nearly every part.
Síđa 390 - March, 1854, and was honored with a public funeral as a mark of the respect in which he was held by the authorities and inhabitants of the district. His loss is the more to be regretted, inasmuch as it disappoints those hopes held forth by my predecessor last year, in allusion to the geological discoveries to be expected from Dr. Stanger, who was to have undertaken an official geological exploration of the province of Natal. * * * ' * * # * The only loss we have sustained amongst our Foreign Associciates...
Síđa 241 - The gneissic strata of the tract embracing this group of lead-bearing veins, seem lo differ in no essential features from the rest of the formation ranging eastward and westward through this belt of country. Here, as elsewhere, they consist chiefly of soft...
Síđa 51 - That they happen at all seasons of the year and at all hours of the day ; but that they are generally most severe in the spring and in the autumn.