Please handle with 



EXTREME CARE 



This volume is brittle 

 and CANNOT be repaired! 



Photocopy only if necessary 

 i to library staff, do not in bookdrop 



GERSTEIN SCIENCE INFORMATION CENTRE 



Librar Y Staff - P'ease retie with black rib" 



reshelve 



I 



Penny Cyclopaedia 

 off the Society for the 

 Diffusion of Useful Knowledge 



S.D 



P4164 



v.24 



C.1 



GERSTM 



