 ... 5. This work has conferred many valuable benefits upon science, indirectly and incidentally, in the invention or perfection of instruments, in the improvement of methods of observation or of computation, in the development which it has given to special...  The American Journal of Science and Arts - 449 페이지1859전체보기 - 도서 정보
 | American Association for the Advancement of Science - 1860 - 460 페이지
...instruments, in the improvement of methods of observation or of computation, in the development which it has given to special subjects of interesting inquiry,...that the work has been expeditiously prosecuted, and that the amount accomplished up to the present date is materially greater than VOL. xm. 13 has ever... | |
 | American Association for the Advancement of Science - 1860 - 460 페이지
...instruments, in the improvement of methods of observation or of computation, in the development which it has given to special subjects of interesting inquiry,...that the work has been expeditiously prosecuted, and that the amount accomplished up to the present date is materially greater than VOL. xin. 13 has ever... | |
 | American Association for the Advancement of Science - 1860 - 468 페이지
...instruments, in the improvement of methods of observation or of computation, in the development which it has given to special subjects of interesting inquiry,...talent of the country, especially in the field of %?tronomical observation and investigation. 6. A careful study of the progress made from year to year,... | |
 | Aaron Louis Shalowitz - 1962 - 788 페이지
...instruments, in the improvement of methods of observation or of computation, in the development which it has given to special subjects of interesting inquiry,...that the work has been expeditiously prosecuted, and that the amount accomplished up to the present date is materially greater than has ever been accomplished... | |
 | 998 페이지
...instruments, in the improvement of methods of observation or computation, in the development which it has given to special subjects of interesting inquiry,...field of astronomical observation and investigation. A careful study of the progress made from year to year, especially since the enlargement of the scale... | |
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