TISSUES IN GENERAL. 



131 







lines; whereas gold tinction colors the projections interconnect- 

 ing the violet epithelial bodies also violet, leaving the cement- 

 substance unstained. 



I have not seen elements in epithelia other than so-called 

 "prickle-cells" interconnected with one another. (See Figs. 44 

 and 45.) 



From my descriptions it follows that all elements of the 

 tissues of the animal body are " prickle-cells/ 7 all nuclei are 

 " prickle-nuclei," and all nucleoli " prickle-nucleoli." 



Examining the epithelial corpuscles of glands, we are satis- 

 fied that the projections of one " enchyma-cell" not only reach all 

 neighboring " enchyma-cells," but that at the periphery of the 

 lobule or tubule of a gland they establish a direct union between 

 the enchyma and the connective-tissue corpuscles. 



The first conclusion to 

 be drawn from my re- 

 searches is that in no 

 tissue whatever do there 

 exist "cells" as isolated 

 individuals. 



Each tissue represents, 

 speaking in the usual way, 

 a colony of cells, in which 

 one cell is uninterrupt- A 

 edly united by filaments 

 of living matter with all, 

 and all with one. Each c - ~ ^ 

 " cell-colony" again is con- 

 nected with the neigh- 

 boring colonies without 



interruption, so that the FlQ ' 45.-S ECT ioN OF THE SUBMAXILLARY 

 7 



. , , ., 

 whole animal body may 



be considered as a sin- 



gle Cell-COlony. In Other 



GLAND OF A MIDDLE-SIZED RABBIT. 

 SLIGHT GoLD STAIN> [PUBLISHED IN 



1873.] 



AAt acini lilied bv epithelia (termed also "enchyma- 

 cells"); C, connective-tissue frame. Magnified 300 

 diameters. 



ne animal body, as a 



whole, is one protoplasmic mass, in which are imbedded a relatively 

 small number of isolated protoplasmic corpuscles (migrating, color- 

 less, and colored blood-corpuscles), and various other non-living 

 substances (glue-yielding and mucous substances, fat, pigment- 

 granules, etc.). 



