7fi 



THE WHITE riXE. 



Kniiii llic tablo \t appears that tlio s))ccilic woifflit of tlii' timbei' is (|uitc', indcpfiKlciit of Mic. 

 rat(> of ;;rowlli, and tliat tlic iiidiviiliial variation ^^ciicrally movfs witlnii very narrow limits. TIm' 

 (liafirains (tifjs. 1(1 ami 17) show the iclalion of weight for the (lilVorctit .■sections Iroiu lh<' stiiin|i 





% 





o'o .10 w m HI) 



Posiliun, . uf discs, £cet from ground . 



no 



Fm;. 16. — DiH^raiii Hliowklj; Hpot^irtc woi>;ht of wood at dirtoniiit cross Bi!ctioiiH of tlio stem : jiImo a (Ii'crfa.sr nf \vei;:lil IVom Mii' Hliinip 

 ii]i\varil. and tin- nimilarity of tlio wood of ditrc^roiit trocfl. (Five trees, over 200 years uhl. Jlnltud lijic indit-.-ites the avi^rai:o.j 



upward; tllt^ slightly greater weight of tht^ older tiinhcr, as coiiiiiared In sapling material, the 

 luiironii decrease in weight froiii stump upward, and al.so the uiiiforinity of the several individuals 

 of any gronp oC trees is clearly apparent Ironi I lie lines. The same decrease in weight from lielow 



,10 40 .50 no TO so no 



Puxilioii nf ih.srs. feet rniin qrouml . 



Y\\i. 17.— Dirtgraiii allowing Hpccilit-. weight of kiln-rtry wood at diflorent points in tlio stnni from groiinii iipwar-d: a.iiix ln>i'M. 2(KI to 'J50 

 years old; (>. live trees, 125 to 160 years old; (•.seven trios, 100 to 12r)yoara old; (/, ton trees, 7.'i lo l(ll) yeais old; c. leii trees. .'lO |ji 74 years 

 old; /, eighteen trees, 40 t« 41) years old ; y, nineteen trees, 30 to 30 years old. 



Upward is observed in the wood of any given jteriod of growth: thus, the, wood of the last forty 

 rings (ne.xt to tlie hark) was tonnd to l)(^ as follows: 



Decreane in wiiijhl nf Ihv iroml nf the liiil (uwdri fmlj/ liiiyn in ihf xererul (HhI.h fnnii sliiiiiif iiiiiiur<l. 



