♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ 



We carry a large assort- 

 ment of seeds of EVERGREEN 

 and DECIDUOUS TREES and 



SHRUBS, both native and im- 

 ported, and shall [be glad to 

 quote on any that are still 

 unsold. 



J.M.Thorburn&Co. 



33 Barclay Street, 



Through;to 38 Park Place 



Established 1802 



NEW YORK 



This Solar can 'be used in hazy 

 weather, when other Solars are 

 useless. Used by the U. S. General 

 Land Office. 



Specifica- 

 tions: 



Tripod. 



Needle 3)4 inches 

 long. (iradua- 

 tions i% inches 

 long reading min- 

 utes. Power of 

 telescope 20 (with 

 splendid rlefini- 

 tioii, good light, 

 and large field). 

 Variation plate. 

 Level to tele- 

 scope, clamp and 

 opposing screws. 

 Vertical arc. 

 Fixed Stadia- 

 hairs. Exicn>ion 

 Solar Attachment on side of stardardf-. 



Price, complete $30(» 



Telegraph and Code jWord, Mounisolar 



illustrated Catalogue upoa application 



YOUNfi & SONS, PfllLADELPflU 



THE 



j Pennsylvania I 

 I State Cnlleyej 



A thorough and practical under- 

 graduate course in technical for- 

 estry, preparing men for all lines 

 of professional and applied for- 

 estry. 



Special attention is paid to prac- 

 tical field work in surveying, map- 

 ping and forest measurements. 

 One of the largest of the State 

 Forest Reserves is within a short 

 walk of the college. 



X 



% 



♦ 



♦ 



\ 



♦ For information regarding entrance require- ♦ 

 J menti>, expenses, etc., address ♦ 



: Department of Forestry l 



♦ state College, Penoa. X 



♦ ♦ 

 ♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ 



PLANE 

 SURVEYING 



M Text-'book and 

 Pocket Manual 



By John Clayton Tracy, C. E. 



Ass' I Professor of Structural Engineering 

 Sheffiield Scientific School of Yale University 



16 mo, xxvii + 792 pages, ilhistrated 

 with line cuts. Morocco, $3.00 



Used in the Yale Forestry School 

 and just adopted in Pennsylvania 

 Department of Forestry : : : : 



Descriptive Circular on Application 



JOHN WILEY & SONS 



43 and 45 E. I9tli St. New York City 



In writin? advertisers kindlv mrntloo FoRKSTR^ and Ikrigation 



