i. C1J . ' -or of 



, ftion and rel^iiv -uity 



at 



__. ; : : condition in the United States snd Korth America. 



1) t ion in the uni . es ii 



Q inch* . r) or I -^.th of the .'t. -unurence una <&&& 



in river rur.r t'.ie line of 40". To the north and north- 



i 30". The 20 H line runs from the 



; the various 



-^1 of . ^ific od 



. 



of r- 1 thru tii-e ye . .nry's 





 ^j >n occ- 



. tel i - ity indexes both 



.1 vrliey to the co-^tLi. 



j . iiorth^v^.A-ci: tli ere is.?? small 



ITO portion of auri,. 



-,\ from ;^y to 3eptc-:ib--:r. Tli relativ 

 'ft *vind nnd tlieroi'orc fc^'/ tree . 



cj . re rains, 



iu lov?, i 



. ..... - % 6 



... . -aoiiuit 



-.rairi . -ort; forest (live o'-^cs) occurs only on 



. . 



) , Liforni t^ rc,-;iou I > irraa . *i:c pre- 



Xo\ ... r the Ir-na is ccoleu. 



ity, rand t.- tli ' f n.irly rt. 



. 



_^> tfortl 'liforn.!-- to ft. Precipitation occurs dur- 



:y north of Port: . rela- 

 -t. to: J to treo f,ro--. 



^ f C>liforn.l-. to . In the fsou-.-.ern por- 



.o ) f the .rniure is -. 



too dry for , . growth. In a tue 



is r-crr -rr . r prec ..;.', t, -3 1 ion 



',de; t] less precipita- 



tion an ...... - ; --- result is a heavy 



t slo , ^inery On ; 'at side. 



^ . or; fr to . riti-.-.. l i Columbia. The 



, ,u no lo-vor ti 



liforj i ^ }ic 



-.ide, ai;:d lov, 



. Xhie cr. . dense ruixed for <- side 



iaivy rains nnd exc ; ; on, 



O f \ . : . iremenaoas 



flooc* r Dpe, 



:is, Puetlo to out . . J reoipita- 



