32 



BULLETIN 312, U. S. DEPARTMENT OF AGRICULTURE. 



US'- 



03 — go 

 S 3 «« 



aft « fi£- 



aw 



e^a § 



&3& S: 



+a O 05« 



H .2 o3 



® +3 fi 



!> o « ■ 



2 5»- 



m Ah 



a a 



fl °3 



Pig 



o ft 



goo 



03 



43:3 



ftfc. 



5 PI 



o 



a° 



la- 



£-3q3 03 



» 2 m'C 



«■£ ® 



—^3^ a 



o - 2 o 



gg8.3 



Hill 



5*g &■& 



? ^ _ <D CD 

 "O^D fi 3"o3 



rrU 3 © r 

 ^"-^^ © 



■S ^ o ■** ® 



5 SoaS 

 3r I5 fitfi.2 



if! 



43 — +* 

 ra O 3 



CD CD CO 



Hra cp © 

 +j 43 + 1 * 



►S3** 5 

 g° s 



to -as — ft 



ft CO t£ >-. rt 



*3 _. ■ "** © 3 

 • . m^.3 ■ 



aflflf 



§ag«-«« 



q u 42 S 03 o 

 3.J9 cn'o-a " 



»sg "3-3 



43— i- 3o3^ 



g fir; 3St3 

 ,§ fi<^ S 3 5 



-ph a 



03« a 

 03-m 



a££ 



aS'S 



g-do'g la 



BgS M .°f 



-g^-§fea 



■3 co - o3 •*£ .. 



43 -OS 343 

 $2 W ftO ft 



Pm B tf 



M . a 



o I- a 2 



= 43 S I 



O S 3 a ■» 



^ -33 03 3 ca 



^ft o^ g 



->>bd 43 



®43— 33-aJ . - 



a & 



" 03 © 



0DQ 



o <! 



b.'— ' to ti ft fi^ 

 X gq t3 a g s — H 



o^-gata^ag 



.a^.s , 5^ft2£ 



cb43 c^a 



eg ^gf*^ 



f "ol'SS^ 



03 2 03 oj ^r 

 43 8 -430 



ft 2 ftTI 



2 2 fi m^S 



d a .a om 



43 0-43« 



S 43 

 ol ft 



3 1 



§ .a 



MO — 



o o 5 



-h © O 



c 'S-'3 

 .43° 



■gal 



.t;43 » 

 !> Pco 



^"S . 



O Eh 



ft 



4<S VH - 



> 



fe -a 



^ 03 



o 



•o 



:t) 



a w 



00 00 00 



a S pq O 



CM CO 00 — 



t^ t^ r~ 00 



00 00 00 00 



N CO o 



ft fifi ft 



CO CO CO CO 



OS C35 O tH 

 00 00 00 OJ 

 00 00 00 00 



IO CN CO 



