infusoria. 
93 
vesicles lull nM^ ^ fus ° ria > hesidi 88 the granules, the interior globules, 
°r less complex weVnTtr^ *?* a t€guraentar >' s J stem > m °re 
The di-'.Ltiv 1 t ie sn jstanee which is called Sarcoda. 
numerous observ +^ ardtU ^ ^ ^ u ^ uso ™ has heen the subject of 
discussions. I n P r0V °5 ative of very animated 
the very smallest aiiLSs^ithr ^ u' 6 ^ WMch com P reIlends 
the organization of the di ,V ' " ot been found possible to observe 
Some writers think they h^ ^ apparatus m a satisfactory manner, 
organ being tT Tf * what *■ Wn for that 
recognise the 0^0 ° f the bod ^ <**« 
a solid armature. As to the ■ . . & OTlflce ’ som eth»es furnished with 
which digestion takes place weT^u* 8 ° f th ° interior cavities in 
r »». « ™ Jrt Zrr e « «* *««#•. 
the aliment The oils are at the ‘ ° prebensile or gans which seize 
" fcoil.to.te respiration ; it,' short ‘r ° re *“’ kt6ndrf 
be mter unceasingly round t]le I„ fu ^ ' “ T*T P 1 *^ »P»>> 
tor the absorption of the oxygen co„h/ J |Ust the actl °n required 
oils, then, serve at once for the J ? “ the water - These 
nutrition, and for its respiration, pCeS? ° f ** its 
cumulative functions in physiology. g remarkable example of 
by the b -cal 
Availing himself of this tact and t f * U mterior of the animal 
Gleichen, , German P^Ut Heri 
happy idea of colouring the w°ater wbM ^ Century ’ Reived the 
»!. « finely-powdered rami* TT* “““ «”™le“I« 
the bodies of some of them. But it r ^ ^ cohmm " matter in 
himself of a , ^ ^ to aydl 
■UK mode of absorbing nutritive matt ■ ■'■ fc ^ e mterna l structure 
This physiologist fed many groups of Inf!. 1 “ 'Matures. 
» o««l with cannine, XLfe T ?- " tt «» 
“-Hndimdualsnftbe^-l"^^: 
