THE INFLUENCE OF THE NERVOUS SYSTEM IN 
REGENERATION! 
A. J. GOLDFARB 
(With Twenty-ruree Ficures) 
CONTENTS 
EA RCAC UAC EN CD THe ete terete rare ete vet oe, vicTe eral eis etel ete iar at abe ats tosh o ataretstaolopatas,wlaxcis ie sie arelerelsraltie lets aie eral oreata 644 
Regeneration in the newt (Diemyctylus viridescens) .............seceeceecscecctccneesees 646 
Regeneration of the leg after different injuries to its nerve supply ......-.-..+++eeeeeeeee 646 
Lumbo-sacral plexus destroyed. Limbs paralyzed completely...............-++-.+-4-- 650 
Lumbo-sacral plexus partially destroyed..............-. Stalotel ste afeuatesale/ealatsi(mvela\ereleie/ sieve 658 
(Chyi@llAacts na gedaaaccne pac n abnor mennddoarnooac0 ducdadorcconnpocecedoccgscusounuc 661 
iDjeyesel octal oe jalleraing Clesadoy eles ae oqo aout S2o0dn05e os cure JosuEudAn HO osedadnO UAE d 663 
INexMensre moved troriyliin lyme oteserarere 7 1s ers cisretovoulale ve tale elie velelay aioe’ ole otelotwtesatetete erciatci 667 
Second amputation of, paralyzed! limbs: 5 fy 0. 20 veniiemin es wirie tes viene oe eos cine orien sine 668 
Other attempts to prevent regeneration... ......0..- seen eee cece sneer cc eeesseet cress 669 
Regeneration of the tail after removal of the nerve cord..........-. 6.0 s eee eee eee ees 670 
Destruction of less than 5 mm. of the nerve ccrd... 1... eee eee e cece eee e eee eee eens 672 
More than 5 mm. of the Heveeord TeMoved vs sour er soodetac semua ae eel eee 678 
Cord prevented from reaching the cut surface. ....-.--0---- sees eset sree eset eee eee 681 
(Gtorgal inves @Alaevny iyo 190 {ale kA ae a Os Sena DOSE SO DER OC rin Grou GOMOD poGbopbecoonacoud 682 
Influence of dorsal ganglia in regeneration... ..........seeeeeeeeresrceserercsseees .. 682 
QhinitEh 9 7o55c006 add ono oom ceb Opn 1 DORO EO nMOM coo Sec CObdennocBoaroos.s“Daan ocd rs0cK 683 
“Thee Mer ise" 8 os Sa an an aCe OS Ee OMe sath: SOE AOMRTer  an moe bon saa: 683 
THM REV GaN Soh oo ee or arg een tre rear ie a RSA AT et Sot areoh icine ase obec rites hth 2 684 
Regeneration in the tail of the frog tadpole in relation to the nerve cord and notochord.......... 686 
Regeneration of the head of the earthworm (Lumbricus) in the absence of a nerve cord at the cut 
BOUL Le CE ra Peet es PTS svete ce al oy eichate Solel sie'slarsyayovesevsja ahaha btascterar tints oefal=(eacNapenehot<tel<ipeTeaee ace 691 
Head not regenerated..........2..0csccrcecccerereeeer sc ee eee eeecerncecteesereces 697 
Head regenerated—New brain and old cord not connected.......-..++++0+eeesereeeeeee 702 
Head regenerated—New brain and old cord continuous.....-.-.-++seeessee sree eee e ee ees 704 
Giiminbis enc oode SeAdnd oh Oops UpUCNUBCUCcrebap: SSUCceSU0OnS dhs ub odo noe bla uiGnOUnrcc 708 
Regeneration in the starfish in relation to the nervous system ....-.+ +. +++. eeeeee renee eee eeees 70g 
Regeneration in planaria in relation to the nervous system ......-++++++eeee eee ee eee ee ee ee es 711 
Qinintig iaoec deccdo. sono HUCobOneed act ae oer nenUcoUg de DeOMonO GTO TOD uno neoass coc 716 
Groh evel MUTT aT Se St TE REID eS DOERR CIRC CHT DE SUP OTIC TAs GU IO IO AO Ea a. CO fs 717 
Viikera tries clteda te cele ete vake ete te ais ule rovacs els ls wie) 615 cimelaveia win’ loxetane’e' ePuielete utaintslsin/s)misjeisiia\s/ Nh =n5i-1 ats 720 
1] wish to express my indebtedness to Prof. T. H. Morgan for much stimulating criticism, to Prof. 
E. B. Wilson, for permission to use the Columbia Table at the Marine Biological Laboratory, Woods 
Hole, Mass., and to the Hon. Wm. Bowers, Commissioner of Fisheries, for a brief stay at the labora- 
tory at Woods Hole. 
Tue Journar or ExperiMENTAL Zo6LoGy. vot. vii, No. 4 
