Seed of PInus Banksiana - $4.00 per lb. 



(Northern Jack Pine) 



Seed of Plnus Strobus - - $1.50 per lb. 



(White Pine) 



Free by mail or express. 



Special prices on large lots on application. 

 Also large line other tree and shrub seeds. 

 New crop imported natural grasses. 

 Send for 1908 catalog, ready about Jan. 1st. 



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: 



Needle 3>^ inches 

 long. Gradua- 

 tions 454 inches 

 long reading min- 

 utes. Power of 

 telescope 20 (with 

 splendid defini- 

 tion, good light, 

 and large field). 

 Variation plate. 

 Level to tele- 

 scope, clamp and 

 opposing screws. 

 Vertical arc. 

 Fixed Stadia- 

 hairs. Extension 

 Tripod. Solar Attachment on side of standards. 



Price, complete $300^ 



Telegraph and Code Word, Mounisolar 



tltusirated Catalogue upon appllcatioa 



YOCNfi & SONS, PDIUDELPfllA 



♦♦♦»♦»»♦♦»♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ 



X — THE ^^ 



I Pennsylvania I 

 j Stale College I 



J A thorough and practical under- J 

 ^ graduate course in technical for- 4 

 estry, preparing men for all lines ♦ 

 of professional and applied for- ^ 

 estrj-. ^ 



Special attention is paid to prac- 2 



tical field work in surveying, map- ^ 



T ping and forest measurements. ♦ 



^ One of the largest of the State J 



♦ Forest Reserves is within a short 4 

 J walk of the college. ♦ 



♦ =^=^=^^==^^= ^ 

 ▼ For Information regarding entrance require- ♦ 

 T menls, expenses, etc., address ♦ 



: Department of Forestry i 



4 state College, Penna. 1 



♦♦♦♦♦♦♦♦♦»♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ 



PLANE 

 SURVEYING 



J} TexUbook 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, illustrated 

 veith 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. 19th St. New York City 



In writing advertisers kindly mention Forestry and Irrigation 



