G20 



FIBRES OF THE HEART. 



iYg. 278. 



Fig. 279. 



Fig. 280. 



Fig. 281. 



282. 



CACC 



CPCA 



CRO 



necting medium among the fibres in question mined the fibres with me, could detect its exist- 



is not only proved by the absence of its physi- euce. 



cal characters, but by its not being discovered Since the chief utility of cellular membrane 



tlironuli the medium of the microscope. Nei- in investing and connecting together the fibres 



(her Mr. Kiei'iiim nor Mr. Goadby, who exa- of a muscle is, most probably, that of retaining 



