EFFECTS PRODUCED BY CUTTING PARAMECIUM CELLS. 47 



TABLE V. 



-' MMARY OF TABLES I.-IY. 



2. ANALYSIS OF TABLES AND EXPERIMENTS. 



I . .1 n<i!y Tnhlc I . 



In the experiment- included in thi- table tin.- cell- were cut 

 in /one I or through the anterior quarter i>t" the- crll, a part 

 containing .nly th- anterior terminu- of tin- | >eri-t< unc- hut none 

 of the iiM|iiirt.ini cell . irgans 



< M tin- J cases n < "fded as having lived at lea-t four hours 

 .ilti-r the o|>ri.ni"ii, som< Mcd \\ithin 24 hour-: other- - 



died without regeneration or di\ i-ion \\ ithin 4S hour-: other- ; 

 li\e<l lor ~2 hour- or lon- i -r \\hhout regeneration; oilier- J 

 ulliniateK ;^a\e ri-e to normal de-< vndant -, and mie divided 

 \\ithin 24 hour- giving ii-e to normal cell-. 



Number ll i- a -. " 'd example of i In- M - - - "I death \\ithiii 

 24 hour-. Here a (lean cut re-ulted in an anterior -mall fi 

 nieiit \\hich in-tainl\ collap-ed. and a larger rmmded fragment 

 in uhich the peri-tome ua- . .|. literati <!. \\iihin half an hour 

 the peri-tome reappraied exactU as it ua- 1-elore 6XCCp1 lor the- 

 -mall part renio\ed Fig [). \" lean an^eiiieiit ol I In- pmto- 

 pla-mic material occurred and the old torm \\a- perlect except 

 for the mi in^ part. So far .1- i \iernal appearance- \\eiv con- 

 ned ! he i ell -llollld ll.l\ c li\ ed. 



t M the !i\e -pctimeii- that died \\ithin the next 24 hour-, 

 number H> i- a good exampk 1 . Here no rttort \\a- madr to 



Derate and at the did of 24 hours the tra^nient \\a- -mall and 

 -lu-ui-h \\ith the remainder of the peri-tome pertect. The cell 

 died before the end of the next 24 hours. 



Number 4 i- a -ood example- of a fragment that lived for 7,; 

 hour- without regeneration or division. The cut -urtace had 



