 | Henry James Brooke - 1823 - 540 σελίδες
...turning the small circular plate a. Now turn the graduated circle from you, by means of the middle plate b, until the image of the bar reflected from the second...indicate the degrees and minutes at which the two planes incline to each other. SECTION I. GENERAL VIEW. THE regularity and symmetry observable in the forms... | |
 | Charles Upham Shepard - 1852 - 268 σελίδες
...reflexion of the window-bar is seen along the black line. Now we have only to turn the exterior axis, until the image of the bar reflected from the second plane is in like manner, observed to coincide with the same line below. In this state of the instrument, the... | |
 | William Somerville Orr - 1855 - 608 σελίδες
...turning the small circular handle, S. No\v turn the graduated circle, by means of the handle, M, uutil the image of the bar, reflected from the second plane,...below. In this state of the instrument the vernier at L will indicate the degrees and miuutcs at which the two planes arcinclined to each other. '• The... | |
 | William Allen Miller - 1855 - 458 σελίδες
...the small circular plate, e. Now turn the graduated circle from you, by means of the middle plate, d, until the image of the bar reflected from the second...is also observed to coincide with the same line." (Brooke's Crystallography, p. 30.) In this position, the reading of the vernier gives at once the mclination... | |
 | William Allen Miller - 1855 - 456 σελίδες
...the small circular plate, e. Now turn the graduated circle from you, by means of the middle plate, d, until the image of the bar reflected from the second...is also observed to coincide with the same line." (Brooke's Crystallography, p. 30.) In this position, the reading of the vernier gives at once the inclination... | |
 | John Fry Heather - 1859 - 198 σελίδες
...the graduated circle be now brought opposite the 0 of the vernier at c, by turning the handle, 6 ; and while the circle is retained accurately in this...will depend upon the precision with which the image cf the bar, reflected successively from both planes, is made to appear to coincide with the same line... | |
 | James Tennant, Walter Mitchell - 1860 - 302 σελίδες
...S. Now turn the graduated cirele, by means of the handle, M, until the image of the bar, refleeted from the second plane, is also observed to coincide...below. In this state of the instrument the vernier at L will indicate the degrees and minutes at which the two planes are inclined to each other. " The accuracy... | |
 | John Fry Heather - 1871 - 224 σελίδες
...circle is retained accurately in this position, bring the reflected image of the bar from ihejirst plane, to coincide with the line below, by turning..." The accuracy of the measurements taken with this inetrumcntwill depend upon the precision with which the imageof the bar, reflected successively from... | |
 | John Fry Heather - 1871 - 248 σελίδες
...graduated circle, by means of the handle J, until the image of the bar, reflected from the »econd plane, is also observed to coincide with the same...below. In this state of the instrument the vernier at e will indicate the degrees and minutes at which the two planes are inclined to each other. " The accuracy... | |
 | John Fry Heather - 1874 - 220 σελίδες
...by turning the small circular handle, a. Now turn the graduated circle, by means of the handle, 6, until the image of the bar, reflected from the second...the instrument the vernier at c will indicate the degree* and minutes at which the two planes are inclined to each other. " The accuracy of the measurements... | |
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Now turn the graduated circle, by means of the handle, b, until the image of the bar, reflected from the second plane, is also observed to coincide with the same line below. In this state of the instrument the vernier at c will indicate the degrees and... 