\'2\) 



OctolxT IT). More wiii{;<'<| iiidividii.'iJs lliaii were previously iioUccd. 

 Tlicsc and a, tew wiiif;l(',s,s ones pcrHi.sf, in leaving' l-lic (■(iiii. ( )cl()l)cr Ki. 

 A lew more win^cil ,s|)<'cini<'ns have appeared, niosl u\' vvliicli leave the 

 cocn. ()ct()l)(r IS. A number of winj;less lire on one coin plant, in llie 

 cavity Foi'tnecl jiy tjie liall-opened tci'tninal leaves, i'urslane placed in 

 I he pols to-day. ()ctol)ei' 20. .No lice on I he purslane plants in the 

 pots. October 2'2. ('a,st; skins ahuixlant, rui tJie corn, and but, few of 

 the lice. Most hav(! disappeared, doubtless developing' wiii^s and flyiufj; 

 away. None lia,v(! set t led on the apple or purslane. October 2)5. (.'orn 

 not luider c(»\'er almost entirely deserte(| by the iir-e. I'laced wheat, 

 near the corn in the open pots. l''ound one winj;'e(| Aphis inaitli.H on the 

 ^lass of t he ;:reenhouse i-(»of. ()clober2l. ('orn completely deserted by 

 the lice this mornin<;-. Not, a livinjf specimen to be foimd on it, or on 

 apple, puislane, or wJieat. Afl,ei'noon. Two winfi;less /l/V/y'.s nuiidis 

 and one win^'e<| specimen have returned to I he uncovi'ied corn. ( )ct,o- 

 ber 2(). Corn not, under cover entirely deserted this morning', <'xcept 

 that t,wo yoiiiifi; were found far down in a rolled central leaf. Ivxposed 

 wheal and apple lea\'es liad no plant lice on them. ( )clober 27. 

 |{emoved all the apple l,wi;;s from (he pots, liavinji,- obtained no t,rM(;(! 

 of t,ransfer t,o 1,lie apple. .\o A/t/ii.s rnaidis in uiutovered r-orn or wheat. 

 (-auf;lit two winji,ed lice on llie^lass roof of the f>reenliouse. < )clober 2!). 

 On corn not under cover no lice were found. One windless louse; feed 

 in^ on \vheat,. ()clober '.iO. (orn not imder cover, free from li(;e. 

 Wheat with n() increase since yesterday. <)clober .")!. ('orn ami wheal, 

 the satru! as yesterday. Tiansferred a. fc'w lice from wheat t,o c()rn not, 

 under cover. November I. Wheat has one winfi;ed lousr; on it tliis 

 morninj^'. bice ti'ansferi'ed to corn doin^ well. Afternoon. Winded 

 l()U.S(! {i;one from wheat,. Most, of those; translerretl t,o corn have wander'e*! 

 away. Some remain, apj)arently feedinji,' far dow'i in the (central rolled 

 leaf. Nov('in})Or 2. Wheat, desert,ed. Lice l,ransfeired to corn seem far 

 down in eetd.ral leaf. November .'i. Hoth corn and wheat, not under 

 cover entirely without plaiit,-lice. Similai' (tntries an; ma,de for t,li(! r>t,|i, 

 (ith, and 7th, but, on November S a, single l(»us(! was seen on the wheat. 

 .November**, t,he corn was still free from insects, and the louse noticed 

 the precedifij^?; day remained on tlu; wheat, pla,td, ; but the following day 

 it ha,<l disappeaied, and both wheal and corn remained de:;tiliite of lice 

 fr(»ni that time foi'waid. 



/'Jx/urimcnl 'Ji. A hill-ij/uss cxjxrii/K til h(t/iiii Odohrr I'-i on rnjr.slcil 

 corn, Id irlncli purxhi/ic »v/.s tidiliil Ihr /.S'///, tipple, I he I'.'lli, ami ivlirai 

 and t/niNs, Ike 'i-ld. 'The apple, liinijn were, rrmoved Oclohcr ',iH. i)cUi\)OV 

 27. Many lice; on corn and wheat; only one or two on ^rass. 0(;tober 

 2\). Many plant-lice, both winj^ed a,nd winfi,less, have deserted their 

 food and ai-e collected in the top of the bell ji,iass. l']noi-mous increase; 

 of young on wheat since last obHcrvation. I. ice also jdentifiil on corn, 



