PHILADELPHIA 
Balances and meigDts 
TROEMNER^S STANDARD 
2774. Balance, the Standard of Excellence, short arm pure alu- 
minium beam, agate planes and "Agate" knives, no steel 
used ; both arms of the beam are graduated ; the pans also of 
. aluminium ; all the brass work is plated with gold ; elegant ma- 
hogany case (old wood), with heavy plate glass bottom ; case 
has glass top to admit light freely ; is provided with improved 
self-locking pan arrest (push in the button, turn slightly to the 
left, this locks the arrest). Balance will carry 200 grammes, and 
is sensible to 1-20 milligramme. All the workmanship is of the 
very finest. The Balance is in use atU. S. Coast Survey, by all 
the large steel and iron works, and many bacteriological and 
chemical laboratories. Price $125 OO 
2770. Analytical Balance, short arm, both arms of beam are graduated 
into i-io milligramme ; beam is of aluminium, all bearings of 
"Agate;" capacity 200 grammes, sensibility i- 10 milligramme ; 
the bows and pans of nickel, bows are 4 inches wide ; fine 
French polished mahogany case, etc., etc. Price 90 00 
2778. Analytical Balance, specially adapted for students' use, also 
for manufacturing establishments, etc. Balance has open 
beam, graduated to y. milligrammes ; all bearings are 
"Agate," wide bows, with 3 in. pans ; will carry 100 grammes 
in each pan, sensible to X milligramme ; improved rider 
attachment ; fine French polished mahogany glass case. 
P"^^ 50 00 
2780. Weigfhts. — In velvet-lined mahogany case — large weights of 
solid brass and lacquered — small ones of aluminium, all of the 
finest finish, and adjusted to the utmost accuracy. 
20 Gram piece and down to i Centigram 3 50 
50 " " " " " " 5 00 
100 " " " " " " 6 00 
500 " " " " " " 10 00 
I030 " (one kilo) " " " 22 OO 
Scales, balances and weights of other manufacturers can be supplied if 
desired. 
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