I;: THE ?H, \\VNEE CAVE SPIDERS. 313 



While in captivity -even individuals moulted, three of which 

 iund dead shortly r the skins were cast off . The deaths 

 wen- probably partial! to an - of water in tin- vial- 



for inm,< diatelv aft< r the old -kii -hed the spiders lay 



lifele-- in tin- water. The -kins v. aded by thread- 



the ujipiT The moults -how that the -kin >plits 



on i -f i!i-- cephalothorax at the <l<>r-.il -i-le of \\here the 



! hed. Ili-ni -. ilu- moulted -kin of ml mouth 



ntrul hall" of tin- moult, and the ronieal 

 belonf 'lie dorsal half. All the old hair- an 



with the -kin, new OIK-S take the plare of the old \\hith 



iiMy brighter. The moulted >kins 



lie al-doinrii \\.-re ciih.-r mi- rolleil up into littK- \\ad- 



liat one i oiild not tell prei-Udy how they \s 



M' IB rALITY. 



In tl, tmd- dr. id Bpecimi US In eaptix it\' 



mortalitN i- not I h mos! important n-i|iiirement i- to 



pi. n i hem in a sat urati-d atm< >Sph< Jit. l'\\o 



third- of ih. and dead in I he i . .ll.-i t in^ \ial- 



tlu- follouin- morning \\hen l<-tt in tin- vial- without a dro: 

 v\ati r over night. l ; i- imp"~-il'l<- t" kre]i tin-in Ion- in anv - 

 tiling not .lir-ti^hl, hov lul on< p them -upplii d 



with water. "l'h- !-! device i- -mall vial- with air-ti'Jit cork 

 -topper-. In -urh vial- they may \- kept for month- without 

 food. < >m- rau-Jn 5 i her I o was placed in a small vial con- 



taining two dr-' < >n Jann.i: more water wa- 



added whirh alnio-t drowned t imeii. ( n Januarv Jo it 



dii-d. Dunn:; all thi- time it had had nothii it. Another 



indiv idual wa- placed in a -mall v ial January ~, and died April \<t, 

 dm- to l.iek of nioi-t utv or lood. 



In ca|)tivit\- tlu-v i|iiite often di<- soon after moulting. In 

 vial- -unshine kill- them in a tew minute-. The heat from a 

 Mudent'.- lamp i- al-o fatal. 



l.Ii.ll 1 I-'.M'l klMl N I-. 



In tin- caves one may throw the li^ht from a carlude lii< vrl- 

 lamp on Tro'Johyplnintt-* for a half hour or more without pro- 



