126 
MR. J. R. CHRISTIE ON THE USE OP THE BAROMETRIC 
The following- Table shows the simultaneous observations at the two fixed stations 
and at the variable one, and the results derived from them by the above method. 
Table I. 
Station. 
Observed boiling- 
point. 
Temperature of the 1 
air, Fahrenheit. 1 
Geneva barometer 
(reduced to 32° F.) 
in millimetres. 
Geneva external 
thermometer cen- 
tigrade. 
Great St. Bernard 
barometer (reduced 
to 32° F.) in milli- 
metres. 
Great St. Bernard 
external thermo- 
meter centigrade. 
Calculated height 
in feet above Ge- 
neva observatory. 
Calculated depres- 
sion in feet below the 
Great St. Bernard. 
Sum of the two pre- 
ceding (6836 true). 
Height in feet above 
the sea by Geneva 
observation. 
Height in feet above 
the sea by G.S.B. 
observatory. 
Height in feet as pre- 
viously determined. 
Authority for the 
preceding column. 
Les Rousses 
204-48 
o 
57 
722-01 
o 
19-4 
566-66 
o 
5-9 
2644 
4024 
6668 
3978 
4146 
3919 
WOERL. 
208-82 
71 
721-29 
19-5 
563-98 
8-2 
( 701 
6^62 6792 
1308 1334 
Bonneville 
208-715 
66 
722-69 
217 
564 14 
6-4 
90 
67306820 
1424 
14401452 
Saussure. 
Mole (summit) 
199-855 
53 
72303 
19 7 
565-00 
40 
5519 
13006819 
6853 
6870 
6221 
Pictet. 
St. Jeoire 
208-40 
62 
724-54 
17 9 
565-73 
5-3 
352 
6424 6776 
1686 
1746 
1778 
Keller. 
Samoens 
207-94 
55-5 
727-61 
17-0 
566-91 
2-5 
747 
6017 6764 
2085 
2153 
2257 
Woerl. 
Col Dichaud 
198-24 
52 
727-73 
23-9 
568-46 
7-3 
6695 
224 6919 
8029 
7946 
Servoz 
207-31 
58 
72906 
15-5 
569-25 
4-0 
1171 
5571 6742 
2505 
2599 
Chamounix — 1 
205-70 
66-5 
728-50 
20-3 
569-44 
100 
2174 
4695 6869 
3508 
3475 
3364 
Saussure. 
Chamounix — 2 
205-50 
50-5 
723-91 
17-6 
568-38 
51 
2076 
46636739 
3410 
3507 
3425 
Forbes. 
Chamounix — 3 
205-52 
68 
721-40 
15-4 
566-1 1 
9-2 
1996 
4751 6747 
3330 
3419 
3408 
Woerl. 
Montanvert 
200-27 
62 
722-57 
22-1 
568 19 
9-6 
5286 
1464 6750 
6620 
6706 
6300 
Forbes. 
Contamines — 1 
204-71 
63 
72261 
19-3 
565-80 
5-5 
2544 
4223 6767 
3877 
3947 
4260 
Woerl. 
Contamines — 2 
204-72 
62 
722-41 
15-4 
564-33 
6-5 
2561 
4305 6866 
3896 
3865 
3259 
Keller. 
Croix du Bonhomme 
197-70 
49 
720-97 
19-9 
563-94 
8*5 
6694 
131 6825 
8028 
8049 
8026 
Saussure. 
Chapiu — 1 
202-35 
54 
721-67 
15-5 
563-55 
3-4 
3889 
28836772 
5223 
5287 
5071 
Saussure. 
Chapiu — 2 
202-655 
52 
724-52 
17-5 
56302 
1-2 
3821 
3069 6880 
5155 
5101 
5006 
Woerl. 
Bourg St. Maurice 
207-00 
59 
726-97 
16 5 
565-59 
1-2 
1295 
5534 6829 
2629 
2636 
Hospice Pt. St. Bernard 
199-24 
50 
724-47 
22 9 
566-64 
90 
5870 
905 6775 
7203 
7265 
7194 
Saussure. 
Cormaveur — 1 
204-75 
57 
723-74 
16-0 
565-69 
4-3 
2441 
4336 6777 
3775 
3834 
3997 
Saussure. 
Cormaveur — 2 
204-60 
555 
721-98 
12 8 
562-32 
4-2 
2535 
42806815 
3869 
3890 
4167 
Forbes. 
Cormayeur — 3 
204-36 
54 
724-81 
17-3 
565-61 
7-3 
2806 
39906796 
4140 
4180 
4046 
W OERL. 
Aosta — 1 
208-59 
73 
724 19 
19-4 
565-72 
8-7 
225 
6651 6876 
1561 
1519 
1938 
Saussure. 
Aosta — 2 
208-46 
61 
721-74 
14-2 
561-61 
+ -2 
205 
65816786 
1539 
1589 
Aosta — 3. 
208-35 
68 
722-23 
15-9 
561-26 
+ 1-8 
293 
6611 6904 
1627 
1559 
Aosta — 4 
208-59 
57 
726-08 
15-3 
563-75 
- 21 
293 
6505 6798 
1627 
1665 
Aosta — 5 
208-56 
72 
726-41 
20-4 
567-18 
+ 6-6 
361 
6542 
6903 
1695 
1628 
St. Remy 
202-545 
52 
725-55 
17-4 
564-82 
+ 0-6 
3928 
2913 
6841 
5262 
5257 
5263 
Saussure. 
Great St. Bernard — 1. ... 
197-64 
39 
725-23 
17-4 
565-27 
+ 2-7 
6791 
6791 
8125 
8170 
Bib. Univ. de Geneve. 
Great St. Bernard — 2. ... 
197-68 
38 
726-42 
171 
566-67 
6-5 
6753 
6753 
8087 
8038 
Saussure. 
St. Vincent — -1 
209-28 
63 
727-96 
15-9 
568-84 
3-6 
- 54 
6785 
6731 
1280 
1385 
St. Vincent — 2 
209-64 
55 
730-25 
20-0 
56904 
2-8 
- 184 
6799 
6615 
1150 
1371 
Col de Jou 
202-82 
56 
730 25 
21-0 
569 99 
5-8 
3984 
2871 
6855 
5318 
5299 
Brussone 
204-65 
66-5 
730-25 
22-8 
570-41 
73 
2904 
3740 
6644 
4238 
4430 
4431 
Forbes. 
Col Ranzola 
199-45 
53 
728-99 
24-3 
570-59 
7-9 
6012 
843 
6855 
7346 
7327 
7136 
Forbes. 
Gressonay — 1 
204-06 
58-5 
730-52 
18-0 
570-94 
4-3 
3224 
3681 
6905 
4558 
4489 
4208 
Saussure. 
Gressonay — 2 
204-33 
58-5 
730-15 
18-4 
570-29 
61 
3050 
3766 
6816 
4384 
4404 
4526 
Woerl. 
Gressonav — 3 
203-92 
57 
730-37 
16 9 
568-27 
2-6 
3294 
3752 
7046 
4628 
4418 
Col Val Dobbia 
197-44 
52 
730-40 
19-4 
568-75 
2-8 
7226 
- 262 
6964 
8560 
8432 
7904 
Saussure. 
La Riva— 1 
205-54 
61 
729-94 
15-8 
569-74 
2-5 
2299 
4494 
6793 
3633 
3676 
3568 
Saussure. 
La Riva — 2 
205-55 
55 
727-70 
180 
569-40 
7-0 
2200 
4527 
6727 
3534 
3643 
3636 
W OERL. 
Varallo — 1 
209-36 
67 
728-18 
200 
570-86 
7-4 
- 96 
6814 
6718 
1238 
1356 
Varallo — 2 
209-26 
63 
727-82 
20-0 
57052 
62 
- 47 
6727 
6680 
1287 
1443 
1491 
Woerl. 
La Colma 
206-72 
70 
728-20 
27-1 
571-67 
13 8 
1560 
5263 
6823 
2894 
2907 
Orta — 1 
210-70 
74 
729-11 
21 5 
572-34 
8-5 
- 895 
7621 
6726 
439 
549 
1108 
Woerl. 
Orta— 2 
210-83 
70 
729-79 
22-9 
571-80 
1 1-2 
- 921 
7628 
6707 
387 
518 
Orta — 3 
210 35 
66 
728-80 
1 8 0 
569-67 
5-6 
- 681 
7452 
6771 
653 
718 
Mogadino — 1 
211-04 
77 
727-80 
19-4 
568-60 
5-2 
-1146 
7985 
6839 
188 
185 
678 
Saussure. 
Mogadino — 2 
211-20 
68 
724-55 
18-0 
566-74 
60 
-1368 
8110 
6742 
- 34 
+ 60 
Domo d’Ossola — 1 
210-68 
78 
723-38 
17-4 
565-64 
5-9 
-1104 
7933 
6829 
230 
237 
1004 
Saussure. 
Domo d’Ossola — 2 
210-44 
66 
723-27 
16-0 
563-89 
4-5 
- 943 
7751 
6808 
391 
419 
Simplon Village 
203-28 
57 
724-03 
17-0 
564 12 
7-4 
3440 
3441 
6881 
4729 
4774 
4792 
Woerl. 
Simplon Hospice 
201-07 
48 
72400 
19-0 
564-13 
5-3 
4753 
2084 
6837 
6087 
6086 
6580 
Saussure. 
Brieg — 1 i 
208-69 
61 
72601 
114 
564-45 
4- 1-6 
229 
6606 
6835 
1563 
1564 
2328 
Saussure. 
Brieg-2 
208-35 
56 
729-28 
15 0 
56600 
- 1-3 
552 
6194 
6746 
1886 
1976 
2183 
Woerl. 
Leukerbad— 1 
204-38 
47-5 
733-42 
14-6 
570-43 
- 1-2 
3104 
3673 
6777 
4438 
4497 
4699 
Woerl. 
Leukerbad — 2 
204-545 
45 
734-75 
13-7 
571-54 
+ 2-0 
3025 
3749 
6774 
4359 
4421 
S. Crest of the Gemmi ... 
199-235 
41 
734-44 
19-7 
57206 
4-7 
6235 
620 
6855 
7569 
7550 
7626 
Woerl. 
Kandersteg — 1 
206-34 
55-5 
73306 
16 3 
572-45 
3-0 
1922 
4816 
6738 
3256 
3354 
3493 
Woerl. 
Kandersteg — 2 
206 17 
48 
732-09 
15-8 
57174 
9-3 
1972 
4765 
6737 
3306 
3405 
Lauterbrunnen — 1 
208-28 
55 
728-81 
16 6 
570-66 
8-8 
585 
6112 
6697 
1918 
1958 
Lauterbrunnen — 2 
208-37 
49 
727-68 
17-6 
569-18 
10-3 
484 
6215 
6699 
1818 
1955 
Bern 
209-26 
72 
726-97 
22-4 
569-91 
110 
- 82 
6883 
6801 
1252 
1287 
1661 
Woerl. 
