OF Mr>ci.i's AND .Ni:i;\ i:>. 



,-,-,, ,. t j,, 1K !,,.;,,- t ] l( , acute .-HIM],.. j n the lon^itn linal 



section they form spiral lines, which run ohliqudv n.iind 

 the outer surface of the cylinder. The electromotive 

 equator, which unites the points ;it which the ,Mv;it.-t 

 positive tension prevails, forms a line round the circum- 



n 



''" 53. Tin; < i I;I;I:\TS ix A i:i:,n..\i: MIX 1,1: I:IKMI:I a. 



Cerence, which separates the rhombus into two equal 

 halves. 



Supposing that a plane is drawn in such a iv-ular 

 muscle-rhombus, throu-h th,. small axis of the elliptic 

 cross-sections, a rectangular tin-lire will lie obtaine.l. 

 The niiiscl.-filiivs lyi]i_.r in siK'li a secti,n are all cut 

 in a Hinilar \\ay, and their c.,nilit i.>n is exact ly alike, 

 i,, this section also the ^reat.'st tension on 



