if
I *
'
Plate X lf l . Mf.teornlogical Obsen'itions for the month of April, 1873.
i
‘ Barometer. Dry Bull) Thermometer ----------- .We
HI £ T h f a rry y y v s z r v d z x fc c U y tJ v e x d ir t fc t c o T i o Y ( A c m ju l" , a n y D t k ( /
Bulb Thermometer Temperature of Sea Surface
number’s berveeeCbu ibs /tre e ciccefr'dxjvtf To Beetzt/vrO 's seczAcz
' I S 2 3 4 7 8 ID II 12 13 14 15 11
1 7 1 8 1 9 2 0 2 1 2 2 £ 3 2 4 2 5 2 G 2 7 2 8 2 3 3 0
