SHEFFIELD SCIENTIFIC SCHOOL OF YALE UNIVERSITY, 
New Haven, Connecticut, y 
/ 
/ 
S 3 . 
189 < 5 " 
/? 
ASkSiL- £ ^ ^4fc- 
/•% v ''Ac /'l / ■< 
AO (J- J(..^ <^e /-i £~e+^- <sw^^ /tr- 
S.’ /r_ 
