Figs pends from Bagle Mountarn , Cook County, hes Fog 7 orclene ref Leght Feg2. 
peolerzzed fayht Scale 3x d¢eameters. 
Orthoctasetyy crystals saturated meth corrasron puartz (2). Pigs us desegned to show how numbers 
ofrnergh boring guertz areas polarvze together 
Fr9.3 Jrom vein in gébhro, Hice Pornt, Duluth Minn. 
Ordenary lyht Scale as diameters. 
Orthocilase decomposed, reddened by trom oxzde,and satura- 
ted by Secondary guartz. 
Peg 4 Sram lange area of red rock inthe gabbro of Duluth 
Minn. Polarzzed Leght Scale af dtameters 
Orthoclase Wecompasecd ant saturated ele Ee 
guartz , themurerous areas of which beloreg to only SUX 
tnrdrviduadls 
