Congressional Edition Volume 3160

Congressional Edition Volume 3160

List price: US$19.99

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks

Description

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...bodies. But the benefits thus gained are only secured by long-continned, patient, and persevering observation on the part of those who sacrifice themselves to this exhausting task. That these observers may accomplish what they aim at, and what is expected of them, therefore, it is of the highest importance that they should not be needlessly interrupted in their labors; and hence it must be acoounted an ad vantape, and not an objection, to the loeation of an observatory that is so far secluded from crowded ways as to be withdrawn from the notice of the curious multitude. Before proeeeding to the inspection of particular sites, the undersigned availed themselves of the opportunity furnished them by Admiral Rodgers to study carefully the map showing the situation of the several properties to be examined with their neighboring topography; and they also read attentively the report made to the commission on the experimental observations in regard to vibration executed by observers assigned to that duty by Admiral Rodgers. This last-named report is the hasis of the judgments of the undersigned as to the merits of the several sites so far as that matter is concerned. With this preliminary, the undersigned beg leave to present successively the results of their examination of the several sites in the order in which they wore visited. To this I might add, that as westerly winds are most favorable for ohserving, smoke and currents of heated air arising to the westward of the meridian line of an astronomical instrument should be principally guarded against. Accepting the foregoing as a proper and necessary exposition of the needs of the ohservatory, I now quote from their report the reason assigned by the professors for selecting: 1. Barber Place. The...show more

Product details

  • Paperback | 64 pages
  • 189 x 246 x 3mm | 132g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236617630
  • 9781236617637