: PAGE 
PP COdItCLOnVaISta tem CNwE rc. ful esi Mu Mylene w fieisRa aie eee da aye. et pes cee 219 
BSE OMe Ole LOLIMNS sar. c)oet west. ees irs Spee s Was the ete Rs OR 219 
BERIECHELAINCODCINSIONG cise uiileteren fut ie tle Wo date ere estat Laicleuabis cae ghee 221 
Beetiduipmoent. andsmethod. of: work.......c0:ce.s.s0l- heel gecees teens cs ceen 223 
: BEAT DeeCAP OME SECS ea ae aye ne A MR onl) OSS, 227 
Heit e-NIStOlye SCLIN -2.csceke vioe Leke ee ode lacne ERROR Gok IS Ie 228 
, PREG RECOLGESCDLCS  ptinn ferevs chee as 8s tsetse Nat tals (sia sile Stove-o' dg ced ceangnie 231 
‘Influence of climatic conditions on the egg, larva, and pupa of the codling- 
moth). i457 Sec cB ORR Ota at cs ae han SE EG Ce ee aoe 231 
ASHES Ol LOM OLa GIT Giac.c cyclen i hiocye ae nko min re ckeeecelakine CHEE eee 232 
_ General procedure in the study of temperature relations.............. 233 
Relation of temperature to development of the egg................... 234 
Relation of temperature to development of the larva.................. 239 
Relation of temperature to development of the pupa.................. 246 
Conclusions from the foregoing discussion..............0..ccceeeeeuee 252 
Observations on the life history of the codling-moth in 1915, 1916, and 1917. 253 
EET AULO NE NO BLOC Wy aeerars Peau cars NPT Tc era ey etace, aie Sessile avisarovellers ik einem aba nts ote 254 
Larval period: 
WWANSTOTOUINE, lave so. ays o0 aioe Calero staat Megs atchshaisijscgnacie Wels stv ee- i oka MEAS 254 
AR POUNAEIN Pal Vy coe rallale data cen ates apeiettsta to alc she aels musinvetil. Sar chel septate d 255 
EIDE SDOLLO Me catesae rays ec yersts shes cian ons weeinay este ates oc ap o¥e ethereal cheese ames 256 
Combined egg, larval, and pupal periods...............-.ccceeeceucs 256 
PRU DOLL OMS seis ai-carendne cco has ate hraole naval a hacaee ars © Spnic wie velataas od agate 257 
BUY eU eRe O-TOLT OC wopercrs ats ha tenor techs Mee eho tans Se ee ePaaa nie die iki tiele he sietee a bone aw 257 
BES TIOSLULOM Meh te ferc fe io-=faarteis &Sicteh oe oie Mare eusiche Rise neta ant tis rata woh btele oie alors 258 
Relation of temperature to length of development period.............. 258 
Seasonal history of the codling-moth, 1915................cceeeeeccecess 259 
AA CAE Om SOY OG meric skater verbo ainis or Nee aloe a ols e sieivie rae wad heye as’ «-<, Aetoné hs, oe 259 
MAT OHONAL I OM 10 Uo cic Mae olete setae ck siete fasratRate denis ciieve Shs vlergvesa 260 
RECOUME AON OLA OON lO Lin seeicrsc, vlctemrarere oie lcistare cha paratoie: wich stelasevwielale nidvels 261 
SEM SOU OLATLOT ON LOD iacithe vve'clt chajact eters savers cxtic clayavardys*acerd\tuslate latte 261 
Band collections: : 
PPOrnaAtine -POnerAttOn LO TAL OMB ok fale, sare. 0 ofsve cues gioce.s sleievad.ele eels 262 
MONG CMOMS PIECE MITT MLO MO tera anvata: shelats orcuate cea, kus yetelesarby aller aiplaletoeioterte 262 
PETTITT SL Coit eP a fofat« (3,cuete ts.i0y ot oSlaes c ata ale) eration bi maja.) arareqa’e «lard. Wigaionte tate 263 
Summary of the seasonal history) L9UG. 0. 6. dee. ie ee cept ee ens oe 263 
ZECOLGBITOL) OLUCTADOUNUSELILAED (OLNGY: cima «aye sis tie.c.e sles alaceroveverelale s:0¥tce: 6 bless 264 
General MOMMA TK Se Ole CNG. HOARD. =, ctspayhere\nie aie) vy ewaulate a/charels ro-8 dubia arate share leas 264 
