386 ConDENSED MiukK AND MiiKkK PowpkErR 
Efficiency and Economy 
ARE COMBINED IN THE NATIONALLY KNOWN 
“AUFRICHTIG’’ VACUUM PAN 
Our Standard “6’ 6”” Pan will condense 10,000 pounds 
of milk in one hour with two coil and 12,000 pounds 
with three coil system. 
Investigate the economically operated Jacketed Hot 
Wells. 
We manufacture complete equipment used in Milk 
Condenseries and Dairies. 
Highest grades of materials and best of workmanship 
is put into our equipment. 
Write for specifications and prices. 
Alois Aufrichtig Copper & Sheet Iron Mfg. Co. 
Third and Lombard Streets Saint Louis, Missouri 
Bausch fomb | 
Microscopes 
Standards of Optical and 
Mechanical Efficiency 
is especially suit- 
Model FFS able for bacterio- 
logical work. Has coarse and fine 
focusing adjustments, with adjust- 
ment heads on side of arm; two iris 
diaphragms, three objectives—includ- 
ing oil immersion—in revolving nose- 
piece; two eyepieces and an Abbe con- 
denser in quick-acting screw  sub- 
stage. Number of magnifications ob- 
tainable ranges from 50 to 1260. Con- 
struction is rugged, and black crystal 
finish on arm and base unusually 
durable. ~ 
Write for catalog describing this 
and other models, 
Bausch € lomb Optical ©. 
NEW YORK WASHINGTON SAN FRANCISCO 
CHICAGO ROCH ESTER, N. ve LONDON 
Leading American Makers 
Model FFS8 of High Grade Optical Products. 
