. 
Prof. J. Lovering on the Aneroid Barometer. 255 
Tasre IL. Taste III. 
$2 a S$ 83 
fa £3. NBS ago) SREB 
ae 5 Es a.bs 2 ese g Observations in Table II, arranged 
1849. ses ees 3 é re according to the amount and the 
‘ hd 635 § 4 2 sign of their differences, 
5s SSe8) A | eee 
43 mg e* 5 gs 
Dec. 10 | 29.932 29.977 | .045- | -005- | 29.597 
Il PEs ae .o18— 022+ 30.31 058— 
12 10.439 30.507 .068— 028— 29.447 054 
13 30.267 30.237 .030+ 070+ 29.787 | .044- 
14 30.122 30.117 .005+4 045+ 30.1 033 
15 30.378 30.397 .019- oO21+ 29.667 | .032- 
16 30.148 30.147 — o41+ re a 8 
17 29.870 29.907 037~ 0. - 
18 3035 32.305 .000 040+ 30.067 or 
19 30.5 30.537 .018— 0224 30.517 | .o13- 
20 29.70. 9-787 084- 44—- = 207 | .O11- 
21 30.119 30.127. | .008- | .032+ 0.407 | .007- 
22 30.012 30.067 .055— o015- 29.937 
23 29.353 29.447 .094- | .054- 29.977 | .005 
24 29.595 29.667 .072- | .o32- Mean, | 30.048 | .029- 
25 29.488 29.597 1o9— | .060- 30335 
26 30,212 30.310 0g8- ef prick ibaa toe 
27 30.087 30.160 073- | .033- ao so7 | make 
28 30.407 30.447 .040- 000 Moiey are 
2 30,025 30.090 .065— 025- 3o.3ay'} 0g 
30 30.200 30.197 .003+ 043+ oa “tae 
85 30.115 30.147 | .032- + ae ig pada 
1590 
Jan. 2 30.360 30.407 .047- 07 - shined ae 
3 30.156 30.207 .o51- OlI- Sep. baat 
; rae 4 ae 8 Kann : 30.367 | .013+ 
5 30,125 30.137 .O12- 028+ Maggot a: 
6 64 30.517 .053- | .o13- woes Lt Me 
7 30.340 30.367 027- 013+ os? 
Mean, . Mean, | 30.212 | .029+ 
“ eos 30.098 « "| 30.048 
Diff nee. .040-= Difference,| .164 
1849. Sept. 10. The Aneroid stood at 30-39. It was placed 
under the Hecuiver of an air pump and the atmospheric pressure 
diminished by 5 inches. When the air was admitted, the index 
moved forward to 30°35. It rose to 30°375 in two or three min- 
utes. The following table embraces similar experiments with 
their results, 
Taste IV. 
Ee az 2 Pl os cen See 
sis| G2 |g (Els ; “3411 af 
S2e| Ge | 8 jeab a. | fed oe H 
222) 23 | € lees g gaz = 
Som | SF 5 35 : a3 
5S | es é seit deel <a 
Sept. 10. 302 - inch | Sept. 24) 29.760 | 29.720 | .o40-|16 inch.) 
|e sok) Shoe Bw |” Baa | pte | cre hs 
-o15- ‘ 29.940 .930 | .o10- | 
art po oS ? - 32. 30.050 | .170-193° °* | 
30.480) 30.500) °020+ e 
le 30.530) 30.530, 000 [9 * 
