u 



i 



CO 



-1 



CD 

 O 



a 



'3 

 ■♦-» 

 o 

 u 

 a, 



o u 



11 



18 



a, c« c 



NEW HAMPSHIRE EXPERIMENT STATION [Bull. 242 



+- a! C u 



O n, rt > 



iS 



"3 -i-g 



t^ ft to "^ 





pasBqojnd 



C» N CC CO irt OS O OS WU500 I>- 



O <N O <M lO O O OS CO O 00 1-t 



tr- t^ CO 



O 



■^ "^ t- Oi "^ 

 CO rH W CD -^ 



(MNcocg-^ 



W Tj< O 



lO o o 

 <N WW 



0005 



W CO CO 







CO U3 (M .-H t- rH OJ O in CO -^ ■<* IC t- IC t^ O OS OS tO 00 Ifl OOO lA 00 00 



•^ -^ CO -^ CO rji CO Tf CO ^ CO CO CO ^ tj* lO "^ -"^ CO IC -^ tr- UD -^ -^ •<3' CO -^ 



51 (^ 



g ooco 



00 -^OOOIC <M lA •«* OS CO OS O CO O 00 C^ Tp O CO »-( OS im OSOOCO t- CO CO Co 00 

 CO CO lO CO lO t- CO l>» lO t- CO to lO CO CO 00 CO 00 CO C- LO 00 lO t- 00 C- OS 00 -<r CJ> 



OO^ O fefeOfo fa OfaO fa O OOCl, J O fa fafaOfafa iJfaO faOO 



bo 

 c 



o 







o 

 Sco 



M, 



W 



S bO 

 O c« 



0) 0) 



CD 



*^ 

 in o 



•73 



• c 



• 3 



• G 

 '•"2 



: ■$■ 



•-0 



• 1) 



: a 

 . a 

 . o 



. u 



• T3 • 



• C ■ 

 ; c3 ; 



• a • 



• 0) 



•^ 0) 



•J3 





•^ b* " (-1 



2 0jJ5x 85-3.3 

 OO (j; a> ^ fl> 



'^ g s a »§ 



« 2 2 ft P 

 t( w w ^-4-s 



CS " IH USi <i> 



•s 



•22 



3C 

 ■3 » 



X 



sits 



S.3 60 



l« 



a Sft 



CD n 



«-S .-" 



m S bo . 



O ^ 01 



(^ S ft 



o o . 

 ■^Xi CD 

 MOO 



"a 



a 



. CD 



• bo 



ftgft 



ftcD a 

 o a o 



4,13 CD « 



2 • -d X 



CD P. I) a 

 C W C S 



o ^ 



^-1 "-• 



H « O 



-SO 



CD 



o 



^a a a 



g 0) d) <u CD 

 a .2 .H .S ° 



a's 



CD C 



o 2 



bo S^ 



S <u ol 

 - 5 !9 -^ 



ag-^5 



CD >, C J2 



a ° - 



_ S >, Q) 



T3 cD !£ 



S^al 



^^y:- 



j2 -d 



"d S S' 



dj 5 -p — 



2 3 ^• 



, ^'^ s 



c*-( 0) C 

 O •- 



ft <u 

 tH 55 ft 



4J 



41 0) 2 

 m w pj 



'3 '5 s 

 a c o 

 c c+^ 

 o o 



rt cD o 



as 



CD 



a 

 a 

 o 



* - 



=•5 "2 



a V 01 ri 

 fa mJ 



P CO 01 

 CU CD J- 



feOH 



01 <u o 

 3 3 m 



OOO) 

 -M -^ t; 

 cS cD 3 



aaii 



O O 4) 



o 



4);;:: cD 



2 CO C 



a . . 



O 4) 4) 



CD 3 3 



g •<-) -iJ 



►■ a) 41 



a 

 o 

 a 

 CD 



pq 



•£■3 

 g-o 



fti 



V 4) 



4) 01 



OO 



3 

 C 



•a 

 c 



CD 



4) 4) 

 > > 



O O 



■OT5 



C C us 



CD CD 



4J 4; 41 4> 



M ys '(J ji! 



o 4) o o 



oooo 



J3 



3 



o 



o 

 -a 



a 



S bo bo 



3 bo bo 



oww 



3S 



3 

 bo 

 CD 

 u 

 CD 



a 



CD 



C 

 4J 



a 



a 

 °3 =3 



bo 

 bo 



•■o 



• 4) 

 > -u 

 . C/1 

 . CD 

 . O 





s 



a 



B 



T3 

 4; 

 O 



bo 



bO 



CD 



3 »■ 



bo 

 bO 



aa 



CD CD 



WW 



CD CD 



in w 



a a 



CD CD 



V 4>.u> ■!-> 



S H 3 3 



4^ -fj Cq Cs 



4J 01 4) 4) 



CD CD 



c a 



o o 



•d 



O CO 



■*-> 

 S CD 



O 3 



•§ e^ 



t^ CO t- Oi 



Ci I— I CO CD 



CO CO (M CD 



rr lO -^ r- 



o o uo t- 



00 



to 



CO CO lO 

 Iff C3 lO 



CO ro 



o 



CO 



rf iC lO CO t- 



■^ in -^ CD T-< 



Cl »-i t* in Tf 



O^ O t:^ t- t- 



rH CC CO 00 



