PHILADELPHIA 
UpocDromatic Objcctioes 
SUPPLIED WITH LISTED OUTFITS AT EXTRA COST, WHEN SPECIALLY 
ORDERED 
Foci. 
Initial 
No. 
Aperture. 
Magnifying 
Type. 
Price. 
Millimeters, 
Inches. 
Power. 
2036 
38 
O'lO 
$ 15 00 
2038 
16.0 
0-30 
15-5 
Dry 
32 00 
2040 
8.0 
o'6o 
31 
40 00 
2042 
5-0 
0'95 
50 
48 00 
2044 
4.0 
1-25 
62 
Water Imm. 
56 00 
2046 
3-8 
1-30 
66 
Oil 
110 00 
2048 
3-5 
I "40 
70 
" " 
150 00 
2050 
2.0 
1-30 
125 
120 00 
2052 
2.0 
1 
I "40 
125 
160 00 
COMPENSATING OCULARS 
Foci. 
No. 
Use. 
Series No. 
Price. 
Millimeters. 
Inches. 
2054 
2066 
2058 
2060 
2062 
2064 
Finder Ocular and Photog- 
raphy 
General Work, specially use- 
Highest Resolving Power . 
2 
4 
6 
8 
12 
16 
I00"0 
50-0 
38'oo 
25-0 
i7'o 
I2-0 
4 
2 
I 
2 
1 
$ 8 00 
8 00 
8 00 
12 00 
12 00 
10 00 
PROJECTION OCULARS 
Foci. 
No. 
Series No. 
Price. 
Millimeters. 
Inches. 
2066 
2068 
With Adjustment and Gradu- 
With Adjustment and Gradu- 
ation 
2 
5 
lOO'OO 
38-00 
4 
I 
$16 00 
16 00 
These objectives, computed by Prof. Chas. S. Hastings, Yale University, con- 
tain no flttofite, and are made throughout of absolutely permanent materials. 
They are not kept in stock and are supplied to order only. 
