Those wishing good herbarium specimens will find it 
convenient to send their lists of desiderata to 
$7.00 per hundred. Satisfaction guaranteed. 
Address J. H. Sandberg, miner Minn, 
Ol CENTRAL AVE. 
Henry Heil Chemical 
ST. LoOuIs, Moe. 
Ghemicals and ae 
AND 
LABORATORY 
3 UPPL 
GIVE Us A TRIAL. YOU WILL FIND Us PROMPT 
Before Ordering Elsewhere, Get Our Quo : 
a fare ogee Catalogue on Application. 
BAUSCH & LOMB 
Microscopes & 
