76 RESULTS OF THE MAKERSTOUN OBSERVATIONS, 1846. 
TABLE LIX.—Extreme Readings of the Barometer for each Month; Extreme Mean Daily Heights 
for each Month; and Extreme Diurnal Ranges for each Month, together with the Ranges and 
Means of the Extremes, for 1846. 
Extreme Daily Means. Extreme Diurnal Ranges. 
’ Extreme Readings. 
Month. || 
| 
| 
| 
Highest. Lowest. Range. Mean. | Highest. Lowest. Range. | Mean. Greatest. 
. in. dh. in. in. in. | d. in. h in. in. in. |. in. 
30-304| 21 18 |28-498| 1-806 |29-401 || 9 30-245 28-663| 1-582 29-454 0-761 
| 30-268) 24 22 |28-863 | 1-405 |29-565 | 10 | 30-197 29-041) 1-156 29-619 | 0-539 
30-380|16 8|28-492| 1-888 |29-436 | 12 | 30-266 28-707| 1-559 29-486 0-730 
|30-058| 2 18|28-823| 1-235 |29-440 | 30 | 30-025 28-913| 1-112 29- 469 0-436 
| 30-066) 18 28-772 1-294 29-419 | 29 | 30-034 28:798| 1-236 |29-416 | 0-496 
| 30-115] 23 28-988 | 1-127 |29-551 | 16 30-088) 24 | 29.055) 1-033 |29-571 | |0-500 
29-986 18 28-778 | 1-208 |29-382 || 30 | 29-939 28-911) 1-028 |29.425 | |0-437 
30-132) 13 29-118 | 1-014 29-625 | 25 | 30-104 29-311) 0-793 |29-707 | 0.579 
| 30-351) 29 29-027 | 1-324 |29-689 | 12 | 30.297 29-099 1-198 |29-698 |0-432 
30-061) 21 28-582 | 1-479 |29-321 | 27 oe 28-702| 1-323 | 29-363 | 1.026 
30-352) 20 8/|28-267| 2-085 29-310 || 12 | 30-325 28-760) 1-565 |29-542 | 0-970 
| 
30-304) 22 18|28-681| 1.623 |29.492 | 31 30-279 28-749 1-530|29-514|| 25 |0-537 
| 
i 
TABLE LX.—Daily and Weekly Means of the Pressure of the Wind, in Pounds on the Square 
Foot of Surface, deduced from the greatest pressures occurring between the Observation Hours, 
in 1846. 
