48 



KNOWLEDGE 



[JcLT 17, 1885. 



tmtcd in Fig-. 50. A stand consisting of a stick of 

 ■wood, 18 in. or 20 in. long, stuck into a suitable piece 

 of flat wood, say 7 in. or 8 in. in diameter, is jirovided 

 with a funnel supiiort. Tliis may bo arranged in a 



11k Mmjl.st 



ted b, iiu- 



elt I 1 , 



GUI 1 I ! 1 II 



mt t),e tlnckne<;s of 't lie 



lod - ti I n.l soldo on to it, 



ncu UK. I 1 el 1 1 I ji I i ^t ut wire btnt to 



shape, 01 a i utt .f slu d uniu I ii n -nith two holes 

 cut m it, one to can 3 tla funnil the othtr to shdeo^er 

 the rod The briss tube if ( f the proper diameter, 

 will fit spring tight on to tht rod, and so cnibk it 

 to be placed at any height If it is desired to 

 seciue the tube bj means of an ordinary sereT\, or, better 

 still, of a thumb or miUtd head scre>\ , then a stout 

 pieee cf tubing -nill be lequiied, ci a seilid piece of 

 mttil inaj be boldered to the tubing, and hive a hole 

 eliilled thi( u_'h It and tapped foi the screw Wlien a 

 squiie II I 1 ( III] 1 \ 1 T| 1 it IS not thought necessary 

 to jioMde 1 ) ' ,„,' the height of the looped 



iim CI till hiped piece of tinned iron 



" ' ' ' ' ; end ( f it fcr 



the 



ul I 



III 



the bent poition bei i 



upright Annmbei i iii] ii liinj- 1 1 i 



will doubtless suetg:! '^t 1 1 I il, 1 | ili 1 jl, ^ 



a small ghss funnel, 1 (n u 11 t i , Ikuh ,1 q j a tus 

 makers), pio\ided -iMtli m ijcitim ef iln ut i lu m 

 diuneter pirtl> fill it « itli hn< mImi s ,n 1 uul th. s.iid 

 «ill fill thruuirh m a stiu^ht column like th it inlieited 

 onth lift SI 1 f the sui port If howe\ er, one end of 

 a -SMI M 1 uniimstd m the smd, while the other end 

 IS ci mi It 1 \sitli I ghss tube ri other body being elec- 

 trih.il th - 1 « ill he electnfied and self-repelhnt, 

 wh(7i „i.t 1 f t.lhn- as previouslv m a strii^ht 

 cohimi It «illl c iisti lined to fill aftei the miiincr 

 6ho\\n Ul till luuiL lo eusaie success with this exjieri- 

 ment a modihcation cf the rubber is necessarJ^ With 

 this we will deal next time 



OUR HOUSEHOLD INSECTS. 



By E. a. Bdtlek. 



COLEOPTEEA (continued). 



IN order to find the other household members of the 

 Heteromera, -hc must le ive f < r a time the cellars in 

 whiehweweie hunting f c i cm far^^t re j resentatire of 

 the ^'1 u]— the f uleluiich^ iid leetli - md Msit 1 ( ali- 

 r difliiint dese 



1 





fl 1 are speciallj li ible" to the att icks 



cf\ 1 etle=, belonging curie u<-ly ene ugh, 



t t met sectirns of the crder In stores 



cf I no less than ciEfhtcen sjccies of 



becll ) ^ \ r ml amongst the le fuse, the ugh it is 



pi 1 11 tl t If these ^\erL thcie net to eat the 



grim tl I 1\ lut to ireytiim such ( f their asso- 

 ciites -IS -v^eu 1 1 hcted to that ] rtctice Still, it is cer- 

 tun thit theie is i ging of nearly a dezen s] ecies that 

 ^Mll engtge in this wcrk cf destiuctirn whenever they 

 ctn get a chance m 1 tl e nnj-lcadei ire these t -no great 

 smneis thee in « itiI ^vIicIi.m h cube don a former 

 (ceisun (Si Kn n 1 I M I h 2^ lh84) Our eld 

 fiieiid the i ninn i'- ^ / t iietinies ]oms the 



links f the e ii 1 ^ i 1 Di T «ei recordb 



hiMi full It 1 luih Is 111 I initt^ cf meaV 

 ^^ln h 1 tl 1 f I It 1 h t j] i 1 1 t tie, where, 



n twitli tuilmgthit tie 1 ttle ^\ is ne\ir cpened, the 

 injects ccntmned to breed f r thiee years, though m 

 gi I lit illy decreismg numbera 



But our concern it ] resent is with the Heteromerous 

 membeib I f this _,' mj; if fieebooters They are chiefly 

 of small size, and none < f them ecjual Blajja in stature. 

 By far the lanrest are those who^e larrse constitute the 

 well-known "me il--noims, ' belonging to the genu8 

 "" ' " ' h the -nhole famih is named the 



( In 



■1 hr 



1 futi 



iillel 



The 



ml tui 



3 thtmsehi 



jur at tent I n at present 



First -\\e have t^\o -vcij closely allied injects, called 

 Tril ihurn pnnini v i md I c, ,ifvsn„i the former of 

 which (Fig l)isniueli theeommcnci Thej occupy a 

 positii n -veij infeiiei tu the com-wceMls m point of de- 

 structnenesb, but still the) are m cnem} nut to be de- 

 spised They aie both small duk icddish biown insects- 

 —a colnni referied tn m the nime ftnvjm un,, "rusty" 

 — of msicrnifictnt ajipe 11 tnee, and, like se-seril others of 

 the a:ri up do not iightfully belong to the British fauna, 

 ha-Murr been intioduced heie -nith fiieisrn merchandise. 

 Thi^ hne ho^e^ei esttllished themsches, at least 

 li it.t f Inmim i f ^^ li le tliiv \m11 breed 



fl 



1 



appe 



. to 



I i: 



f Bii 



ill cendition, they 



^ects 



they 



■\M nlil qieii iilentie il Ih a Aerj ck se and careful 

 eenii in- nun hi tli nii t j e, minute points of differ- 

 enei i tl ^ * 1 ^ nl [ une tuition can be made 



out 1 ' tl md teehnicil a character 



to 1 1 ' In the name confunm, 



the I III' SI cond species, we have an 



mdieati n nt the ilithiult) tint ittends then separation, 

 and cf the probability e f their being eonfcunded together. 

 Theie IS cue peculniitj,, howe\ei possessed m common 

 bj these insects and their allies -nhieh is -wcrtli notice. 

 It IS that the eyes, which look like piles cf tmy, polislied 

 black beads, are much encroached upon by a projecting 



