OUNAMENTAL GROUNDS AT HAMILTON COI.I.KCK. 



triangle, the hypotbenuse of which angle is represented by that of the sun's rays from 

 the top of the tree to the ground. This hypotbenuse, or direction of the sun's rays at 

 noon, always forms, with the ground line, an angle equal to the amount of the latitude 

 and the sun's declination added together, from the 20th of March till the 22d of Sep- 

 tember; but from the 22d of September till the 20th of March,* the sun's declination 

 is to be subtracted from the amount of the latitude. This angle being found and the 

 height of the wall, house, or tree taken, all the rest will be found by the rules of trig- 

 onometry. 



The following simple rule may be of use to such as do not understand geometry or 

 trigonometry, and will give the shadow near enough for practical purposes : — 



Multiply the height of tlie wall, tree, or 

 buiUiisr— 



The product ■will give tlie k-iigth of the shadow 

 at noon on the shortest da}'. 



Example. — Wliat will be the length of tlio 

 shadow of a tree 10 feet high, in latitude 52° 

 on the shortest day ? 



3.852 the multiplier for latitude 52". 

 10 the heiglit of the tree. 



38.520 

 12 



6.240 

 12 



2.880 Ans. 38 feet, 6 inches, 2 parts. 



ORNAMENTAL GKOUNDS AT HAMILTON COLLEGE. 



BY THE CURATOES. 



The readers of the Horliculturist will remember that mention was made in this 

 journal, a few months ago, of certain contemplated improvements in the grounds per- 

 taining to ITamilton College, at Clinton, N. Y. Some progress has been made in this 

 work, though it is far from being completed. Our time and labor, hitherto, have 

 been expended chiefly in removing unsightly incumbrances, in grading and draining 

 the soil, in planting hedges, and laying out roads and walks. This foundation-work 

 being now finished, and something having been done in the way of planting trees and 

 shrubs, we feel justified in making a brief report of our operations to those interested 

 in such matters, and in presenting an engraved plan of our grounds. We do this by 

 way of acknowledgement to those who have aided us in this enterprise, and in the 

 hope of encouraging others who are engaged in similar labors. 



Let us now turn to the annexed plan. We will suppose the reader to be, for the 

 time, our visitor. On arriving at the middle entrance, K, on the south side of the 

 Park, let us drive along the carriage-road a few rods distant from the front of the Col- 

 lege buildings. This avenue, you will observe, is bordered on each side with a wire 

 and a hedge of Buckthorn. On the left, we have a near view of the South 

 B ; the Chapel, A; Middle College, C ; North College, D ; and the Astrono 



