Pobre phere OF THE DESTRUCTION OF PERIPH- 
ERAL AREAS ON THE DIFFERENTIATION OF 
THE NEUROBLASTS. 
M.L. SHOREY 
ConTENTS 
i finit@ahiee@M. 26 éc0g 030000 4dao0 Caen go DBD OGaOnOC OMOEA nO MaaonoddG opndcriohcadosuaec 25 
lee: KEIM TOM PECL CLGatctaratyiel geste) o's /a15/0)-\ejolaia «a 'e elnle: «aici oy osrersrela Biofelstere toler manatees mares feels 28 
Al OR GEOMEE ATA Gad 3.6 Cac peOetettos DIRE EEE CEE Aee nea on comccdc pe Ans ese urade: 28 
aC haracte pOMtAEG PCLA LOI c.1<'s\s/cis(s.0is 2, 2-2)= <0 cit/eis:s ciao vie leie a ele sisia)ala eye.e.s Claclels d.cislsialaeieeists 29 
G iieineils..5- doe cbpaceadas be SAS eB ean Go DES DORA SAR OMe nae AO ucdae Se ocouosEOneSc 30 
D Experiments on embryos after three days of incubation................0-eeeeceeeeeeees 32 
1 Specimens preserved five or six days after the operation.............000eceeeeeeeee 32 
2 Specimens preserved from four days to one day after the operation.............. o4a, 20) 
Petxpenmentsatlaterstapes Of developments ...% aes talaiat= » /m areloic/alole «/-1s0/4)feyei~)orstelsieipynnieTa tere 43 
Ter AMET SINC Acts ON LNCUD ALONE. vcisie sp<hs cic 6 sySterciess/oe.+ ~ie\es erste Sisietalsieis ster etote le emiateeeiors 44 
2, AMAESRNTECES AG) DENT) intogeer ace OO RSERBaS DMEM TODO SU doucconoonscena. 44 
BW Attemmoundarsobimen Db atlOMg i. 115 daler lols tels(a ns sialon fore olalsieiereietal\nvensletstemieretl ae 45 
sfeup Resrateonyallioo tas OMMMICED Saya aes efels y «\n) 6) 20s =i cl yavese'e ciate <Paioi aie. ofaicsave\alaielei istalelelel ahaa als ola eleters 45 
(EG) SHRMENENGIS? eB aid ao tikes. Ca ORO EE OR Eee Sapien oso cricoLooot coon cook, 740) 
ja? TORRRUBSION Ss Jag 386 Gado b Db ao OCe Ran Tee Deedes in aaeTonloorenpauaoburod omen. 51 
Mee SpPErigien ts OMA PAI DIANS. ccleielace clas cicleecielaie w efo\ne oe © ja wjsleie/alelr s\eleleis eine’ s\e ma/alsjaje/s) siataiatels 54 
AMAstorieal ang | CrificAl Survey, Of PreVIOUS WOLK. « <a -1 o[- » vleleicjoleicls eee ale/=l= lelelelaleleln /eietelelr 54 
BePorposermetnod andimaterialiays 21-10% vies s/eie\+ © cole ele ele cme =e «)sinieis ois sislele/siels eloleleie)s shel wie 56 
G Experiments on Amblystoma tigrinum ........5..-0cccesccseacenccsenscsccsccccece 57 
- a Specimen preserved thirty-three days after operation. .......-...+esscereeeseees 07 
BMY OWTICEG ET DLV OS: ola)ajetes)aei sich jets stoldin ofeie sia in 0's cie/ele «leleie/slefelsInisioie"~ s\ecisienieieniciei=) > 58 
D’ Experimentson Bufo americanus .: 2. 6.0 .. 6 secs ce ccs cceecies cc ccceersecorensrcasn= 60 
Ee Remoyalofsomitesin Rana pipiens... 22-566. cee ore ecces sels ticleiesoisiselisie sis sis e's 61 
F Summary of conditions found in amphibians..............0cesecceeecereecercceccees 61 
@ Comalistiee.. Aan qntoboeeede ae OM GeO OO OneE as HRA Gadon ObOaSEd ODO ODO A Sen oGon cbc 62 
I INTRODUCTION 
Observation of surgical cases in which the amputation of a 
limb has been followed by the degeneration of the nerve fibers 
innervating it, and finally of the nerve cells from which they arise, 
and cases of paralysis accompanied by the atrophy of the muscles 
Tue JouRNAL oF EXPERIMENTAL ZOOLOGY, VOL. VII, No. I. 
