<>F Mr.-n.F.s .\M) M:I;\KS. 



Kx peri men ts in muscular elasticity may also be made 

 with the apparat us briefly described above, by measuring 

 the e\ten-ion< of i he mii-de 1 ,y the variations of a lever 

 attach.'.! to it. The easiest way to do this is by t'a.-t.-n- 

 ing an indicating apparatus to the lever in such a way 



lie. 8. M \iri.i MI IM.I: Aril. 



that it tra :i - the movements of the lever on a plate of 

 smoked glass placed in front of it. This apparatus is 

 called a iiii/<>i/r<i/ili< or muscle-writer- Fig. S represents 

 it in the Simplified form adopted by I'lliiger. The body, 

 1 1n- elasticity of \\hich is to be examined, is 1 irmly fixed 



