Abstract of Meteorological Observatiojis in Brazil. 363 

 Table III. — Mean temperature of each of nine hours. 



This gives 67° as the mean temperature of the year 1846 ; 

 a result which probably diiFers but very slightly, if at all, from 

 the truth. 



Table IV. — Comparative temperature in shade and in open 



sunshine. 



Date. Tlierm. shade. Therm, sunshine. Remarks. 



On the mornings of the 27lh, 28th, 29th and 30th of July, 

 there was sharp hoar-frost. 



At 3 P.M. of the 28th of October there was a heavy fall of 

 hail, the thermometer in the shade standing at 78°. 



The first fire-fly appeared on the 7lh of August (the mean 

 temperature of the twenty-four hours being 6l°6), and on the 

 11th they were numerous. 



The American robin {Sabea) was first heard on the 4th of 

 September, when the mean temperature was G0°-7*. 



• The song of this bird, ahnost our only songster, is consiclirecl by the 

 natives a certain sign of tiie rainy season. 



