— 159 — 



Pa3BHTie HepBHOił TpyÓKw iroKaatiBaeTŁ, tiTo caMoii pannei 

 no npoHCxojKAeniio óy^eT-i, łicpcytHHa ^acTL Moara; iia;mA'b ori, 

 Hca iiocTeiieHiio lUJAhjifiiOTCH m uaMiJKawTca ucTajiLiihie oTjifhjiu 

 iteHTpajibuoii iiepnuoR cMcreMbi, a bl r>aBMCMMocTH otb iiocjit/i,- 

 HCM BI, TOM'Ł łKC oGiu.eM'Ł iiopa^Kt' o(3})a;{yeTCJi M iicpMtepMuecKaa 

 nepBuaa cwcTeMn. 



Bb iiepeAueMb me (wjihji-h tojiobf.!, eme ao pa^BHTia oiwfeJib- 

 Hhix'Jb oi)raHOB'i>, yaM-fciiacToi oGinee yTo.iiu],eiiie einoAcpMa, wai, 

 KOToj)aro ;i,ojJJKHhi iiojiyuHTb iia«iajio 3iiMAepMMqecKie oT^^jiti op- 

 ranoBi, uyBCTBi> rojioBU u )i.i\^iui ryjioBMma. ^ajibiiiiiimee hx'l 

 pasBMTie M paciipocTpaueHie bb u6jia(yrax'L oKoufiaTejibuaro M'fec- 

 TOHaxoai;;eHia coBepiiiaeTca ya^e TorA^, KorAa 3KT0iie})M'b Tepa- 

 eTb cBoii aMÓpioHajibiibiii xapaKTcp'b u cTaHOBMTca aimAepMOMi,. 

 3th npou,eccbi ai^ ucoGenHOło acHOCTiio HaóJno^aiOTca iipu oOpa- 

 30BaniH iipocT'feiiiiiHxi> opraiioBb iiyBCTBb iio3BOHoqHbTX'b, opta- 

 H065 60KO6OU jiuuiu, pa3BMTie KOTopbix'b łi cocraBJiaeTTj upe^Merb 

 AajibH'feiimaro H3JioHjeHia *). 



Hto KacaeTca iipunararo iuimm b^ iwM'h ii()pa;iKa, to mu 

 HaiHeM-b ci> Cyciostomi'^ wh ocHOBy oy^tyrb iiojioajeHU Ha0.iJM)jie- 

 uia ua;!,!, cejiaxiaMM; iiacTb ^aKTOBi, B3aTa M3'b pasBMTia kocthc- 

 Twxi. pi.i6'b; iiaojitoAciiia na^b aM^wOiaMki (iipea^nia u hobłjh) 

 BMiiCiii cb iipoMUMa ^liajtyTi, naM-b iipaBo ŁiM^Tb bi, BM^y bcio 

 rpyijiiy Ichtltyopsida. 



*) Pa6oTa o pasBHTiu 6okobhxi, opranoBi, 3a;i,yMaiiHaa cui,e bł 1886 r., 

 MacriK) Bi oiipoBepjKCHie lioiiiiiiBiuaroca Tor^a H3CJili;i,0BaHiH 13npAa (60) 

 o ,,}Ka6epHBix:i. opraiiax'i. uyBCTBt^', BCTp'feqeHHaro ci> MHorHxii cropoHi. 

 KpaiiHC couyBCTBeHHo h ;i,a;Ke Bsararo BH;tepcreMMOMi> bo BTOpoMi. 

 H3;i,aHiii ero yqe6HHKa (62) bł ociioBy MSJioHfenifl rjiaBu o >iepeiiHi.ixTj 

 HepBax'b, uacTiK) — ;i,.u}i no;i,TBepjK^eHifl iioJiOJKeuiii, ki, KOTopuMi, w paiu.- 

 me (51) iipHiueJii, coBepmeHHO ApyrwMi, ayTCM-L. HaqaTa oaa ÓBUia ji^tomi. 

 1887 r., BO BpcMH iipeóbinani}! Moero b-b PockobIj, r^i,* 11 co5paiii. Cwjit 

 ocHOBHoii MaTCpiajii a^ah aToro HSCJiliAOBanisi. Ecjim ricpBaa h^t. buiuc yKa- 

 3aHHHX'j, 3a;i,aq7. yTpaTHJia TeuepB xapaKTep'B hobhshh h qacTi> CBoero sua- 

 qeHifl,— TaKt Kain. nscjit^oBaHui Biip^a no;tBeprjmcB yjKe pa:uiocTopoiiiieii 

 KpHTHKtj — TO BTopaa oCTaeTCfl BI, iio.imoii cu.it.. TaiaiMi, oópasoMi., pa3- 

 BHTie opraHOBi, Sokobom jmiiiH; cocTaBJiaa bi, iiacToamoArb co"iMHemw rpcTbio 

 iiacTbj no BpeMciiu paspaóoTKH aB^aeTCH nepBoio. 



