33 



METEOROLOGY FOR APRIL, 1864. 

 Private Observatory, Hobart Town. 



1841 



1842 

 1843 

 1844 

 1845 

 1846 

 1847 

 1848 

 1849 

 1850 

 1851 

 1852 

 1853 

 1854 

 1855 

 1856 

 1857 

 1858 

 1859 

 1860 

 1861 

 1862 

 1863 

 1864 



c«CO 



"X2 



In, 



29.738 

 29.762 

 29.919 

 29.764 

 29.980 

 29.741 

 29.818 

 29.790 

 29.771 

 29.862 

 29.999 

 29.926 

 29.738 

 29.921 

 29.898 

 29.719 

 30.050 

 30.022 

 29.873 

 39.036 

 29.993 

 29.936 

 30.078 

 ,30.000 





52.84 

 52.62 

 52.59 

 50.00 

 54.22 

 53.32 

 53.23 

 56.86 

 49.36 

 54.83 

 53.79 

 53.68 

 56.06 

 62.00 

 58.38 

 50.00 

 54.00 

 56.37 

 57.42 

 57.42 

 57.62 

 55.51 

 54.77 

 56.15 



77.2 

 79.2 

 68.0 



78.5 



72.2 



^1 



^ 



78.5 37.0 18.2 



o 

 ® . 



to O) 



39.6 15.1 

 37.3 16.4 

 39.6 15.1 

 37.0116.4 

 41.5 14.2 

 73.4 38.01 14.4 

 77.2 39.6! 18.9 

 37.0 15.1 

 36. 0| 17.3 

 37.5 16.4 



70.7 

 79.3 

 78.8 

 76.0 

 75.3 

 82.0 

 89.0 

 90.0 

 85.0 

 78.0 

 80.0 

 89.0 

 80.0 

 73.0 

 76.0 

 77.0 



40.0 

 42.3 

 41.4 



12.6 

 14.4 

 11.0 



36.0| 15.90 



30.0 

 35.0 

 32.0 

 35.0 

 42.0 

 39.0 

 38.0 

 40.0 

 37.0 



21.80 

 23.80 

 22.20 

 20.10 

 18.83 

 18.40 

 18.90 

 18.20 

 15.86 



in g 



o o 





fl-S 



w 



,^ 



.6 

 5 



5i 



f 



7=^ 

 3" 



eh 



5 



5.^ 



6i 



6^ 



71 



6.50 



6.33 



5.21 



4.00 



6.17 



5.90 



7.00 



5.10 



5.13 



6.54 



6.07 

 7.24 

 6.45 

 6.88 

 6.80 

 6.96 

 7.41 

 6.93 



In. 



1.11 



0.89 



1.96 



0.92 



0.24 



2.68 



1.74 



0.51 



1.46 



2.19 



0.18 



4.99 



1.18 



2.72 



1.17 



5.01 



0.79 



0.44 



1.43 



2.86 



2.5l 



1.88 



2.24 



2.18 



The means in all cases are taken from the sums of each 

 column, and not from the maximum and minimum. 



Time of leafing, flowering, and fruiting, of a few standard plants, in the Royal 

 Society's Gardens, during the month : — 



1st. Chrysanthemums commencing to flower. 



5th. Elm leaves commencing to fall. 

 15th. Coe's, fine late red plum, commencing to ripen. 

 20th. Mountain ash leaves commencing to fall. 

 25th. Black mulberry leaves commencing to fall. 

 30th. Hornbeam seeds ripe. 



ANALYSIS OF THE OBSERVATORY RECORDS FOR APRIL. 1864 • 

 m CONJUNCTION WITH THOSE OF BIRTHS, DEATHS, &o. By 



E. SWARBRECK HALL. ' 



The present month has been more fatal to life than any April of the previous 

 seven years. The meteorological phenomena generally, both in daily phases 

 and the means of the month, depart considerably from the usual character of 

 the month. 



Atmospheric pressure had the mean of 30*000 inches, which is + '115 above 

 the 20 years' standard mean, but + '163 higher than the mean of the first 

 sixteen years of the series. 1857, 1858, 1860, 1863, alone, out of 23 years, had 

 slightly higher means, the last named being 30*078 inches, and the maximum. 

 The maximum pressure of the month, 30*402, occurred on the 30th, and the 

 minumum, 29*380, on the 24th, the extreme range of the month 1*022 inches 

 therefore, happened iu the last week of the month. The daily perturbations, 



