Seed of PlDDS Banksiana - $4.00 per lb. 



(Northern Jack Pine) 



Seed of PlDDS Strobos - - fl.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 ior 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. 



Specilica- 



HODS: 



Needle 3>^ inches 

 long. Gradua- 

 tions i% inches 

 I 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. Eztension 

 Tripod. Solar Attachment on side of standards. 



Piice^ complete |t3ooi 



Telegraph and Code Word, Mountsolar 



ttluatrated Catalogue apoa appUcation 



Y0DN6 & SONS, pmuDELPfliA 



Pennsylvania 

 Stale College 



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- 

 ticsj 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. 



For tuformation regarding entrance require- 

 menu, expemet, etc., addrett 



Department of Forestry 



state College, Penna. 



PLANE 

 SURVEYING 



J} Text'book and 

 Pocket Manual 



By John Clayton Tracy, C. E. 



AssH Professor of Structural Engineering 

 Sheffiield Scientific School of Yak University 



16 mo, xxvii + 792 pages, illustrated 

 with line cuts. Morocco, $3.00 



Used in the Yale Forestry School 

 and just adopted in Pennsylvania 

 Department of Forestry : : : : 



Descriptive Circular on Applicatloo 



JOHN WILEY & SONS 



41 and 45 E. 19tb St. New York City 



In writioar adTertlsers kiadly meotlos Fckbstrt akd IxmoATioit 



