[ 384 ] 



H Cheap anb lEfRcient Bieaecting flDicro^cope 



WE think the annexed illustration of this instrument, Fig. 

 84, will explain itself. The stand is made out of a 

 solid block of clear pine, as shown in A, front view ; 

 B, end view ; C, median cross section, showing ;;/, an inclined 

 rnirror, fastened with small screws or tacks. D, top view ; /.//., 

 lens holder, which slides in brass tube driven into a hole in 

 block (see C) ; st, stage, a moveable glass plate. 



I ■ I ' 



vii,jfi/>i>jlji/l,ii)if/rr>fjm,> >>'/i->'>.'l^J'\ 



ltji/t/..//^JJ,>/,/,*.i.i,.Jir.l//*'/liJ 



JO 'tfCHfj 



Fig. 84. 



1 1 ' 



