[19] Mr J. Wilkinson (ibid, Note, p. 41), says, “Judging from the angle of its dip, it formerly rose over the lower, or eastern primitive range, from which, however, it is now separated by a valley, or bed of a torrent.”
[20] Ibid, p. 42.—Pliny writes of the quarries, “quantis libet molibus cædendis sufficiunt Lapidicinæ.” Lib. 36, cap. 7. They produced red porphyry of a most beautiful, close-grained kind; so Pliny says, “rubet porphyrites in eadem Œgypto.”
[21] Ibid., p. 51.
Synopsis of Meteorological Observations made at the Observatory,
Whitehaven, Cumberland, in the Year 1849.
By John Fletcher Miller, Esq., F. R. S., F. R. A. S., &c.
Communicated by the Author.
| STANDARD BAROMETER,[22] Corrected and Reduced to 32° Fahrenheit. | ||||||
|---|---|---|---|---|---|---|
| 1849. | Max. | Min. | Mean at 3 P.M. | Mean at 10 P.M. | Mean Atmospheric Pressure. | Range. |
| Inches | Inches | Inches | Inches | Inches | Inches | |
| Jan. | 30·173 | 28·680 | 29·654 | 29·679 | 29·666 | 1·493 |
| Feb. | 30·774[23] | 28·890 | 30·012 | 30·012 | 30·012 | 1·884 |
| March | 30·494 | 29·140 | 29·940 | 29·949 | 29·944 | 1·354 |
| April | 30·147 | 29·123 | 29·551 | 29·563 | 29·571 | 1·024 |
| May | 30·147 | 29·052 | 29·749 | 29·763 | 29·770 | 1·095 |
| June | 30·122 | 29·516 | 29·867 | 29·873 | 29·884 | 0·606 |
| July | 30·295 | 29·216 | 29·763 | 29·770 | 29·780 | 1·079 |
| Aug. | 30·189 | 29·175 | 29·785 | 29·788 | 29·800 | 1·014 |
| Sept. | 30·464 | 28·924 | 29·826 | 29·831 | 29·842 | 1·540 |
| Oct. | 30·489 | 29·129 | 29·720 | 29·731 | 29·739 | 1·360 |
| Nov. | 30·137 | 28·737 | 29·637 | 29·668 | 29·666 | 1·400 |
| Dec. | 30·721[24] | 29·078 | 29·843 | 29·835 | 29·853 | 1·643 |
| Means | 30·346 | 29·055 | 29·778 | 29·788 | 29·794 | 1·291 2·094 |
| [22]The readings of the barometer hitherto used required an additive correction of about 0·08 inch. All past results will be reduced to the standardinstrument. | ||||||
| [23]Uncorrected Maximum, 30·820 inches. | ||||||
| [24]Uncorrected Maximum, 30·752 inches. | ||||||
| STANDARD BAROMETER, Corrected and Reduced to 32° Fahrenheit. | ||
|---|---|---|
| 1849. | Pressure of Vapour. | Mean Pressure of Dry Air. |
| Inches | Inches | |
| Jan. | 0·236 | 29·430 |
| Feb. | ·265 | 29·747 |
| March | ·264 | 29·680 |
| April | ·256 | 29·315 |
| May | ·354 | 29·416 |
| June | ·357 | 29·527 |
| July | ·426 | 29·354 |
| Aug. | ·436 | 29·364 |
| Sept. | ·413 | 29·429 |
| Oct. | ·316 | 29·423 |
| Nov. | ·295 | 29·371 |
| Dec. | ·233 | 29·620 |
| Means | ·321 | 29·473 |
| SELF-REGISTERING THERMOMETER. | ||||||
|---|---|---|---|---|---|---|
| 1849. | Absolute Max. Min. | Mean of Max. | Mean of Min. | Mean Monthly Temperature. | Range. | |
| ° | ° | ° | ° | ° | ° | |
| Jan. | 50· | 18·7 | 42·14 | 35·82 | 38·987 | 31·3 |
| Feb. | 51· | 30· | 45·91 | 40·07 | 42·990 | 21· |
| March | 54· | 28· | 46·79 | 39·96 | 43·375 | 26· |
| April | 62· | 29· | 49·73 | 38·51 | 44·124 | 33· |
| May | 70· | 36·5 | 60·51 | 45·85 | 53·185 | 33·5 |
| June | 67·5 | 40·5 | 61·53 | 48·55 | 55·044 | 27· |
| July | 75·5 | 46· | 63·93 | 53·74 | 58·835 | 29·5 |
| Aug. | 72· | 46·5 | 64·05 | 55·03 | 59·541 | 25·5 |
| Sept. | 74· | 42·5 | 62·56 | 50·48 | 56·524 | 31·5 |
| Oct. | 64· | 34· | 52·16 | 43·11 | 47·636 | 30· |
| Nov. | 55· | 27·7 | 47·85 | 42·77 | 45·310 | 27·3 |
| Dec. | 52·5 | 25· | 41·69 | 35·93 | 38·810 | 27·5 |
| Means | 62·3 | 33·7 | 53·2 | 44·15 | 48·696 | 56·8 |
| PLUVIOMETER. | ||
|---|---|---|
| 1849. | Rain and Snow. | Snow. |
| Inches | Inches | |
| Jan. | 5·683 | |
| Feb. | 2·045 | |
| March | ·837 | |
| April | 1·488 | ·090 |
| May | 3·037 | |
| June | 1·224 | |
| July | 5·478 | |
| Aug. | 3·771 | |
| Sept. | 2·814 | |
| Oct. | 5·252 | |
| Nov. | 4·974 | |
| Dec. | 2·396 | |
| Means | 38·999 | ·090 |