Plate. I. 



Plan 



A Leith Cart. 



Fig. ^^.i^ecfion ofaMi/^Ifo?/^e ^Iroug/^ ^*^ /^7ie, a . b . 



f'^'tO 



IK Li 



i 



S 



lti^l.Pla?i ot' a Mii/c-louse fvitoits nec^pary avvurlfna?ic€^ , 



J/,/-/yrr^. /U/A 



