370 Scientific Intelligence. 



logical schedules issued by the Royal Society of Edinburgh have been 

 filled up with very valuable sets of observations, for every hour of the 17th 

 of July last. In some of them the observations were made every half hour. 

 The day did not present any great variety of meteorological phenomena. 

 There was, for example, almost no rain, and no indications of electricity 

 in the atmosphere; but it possessed a different kind of interest. It was 

 one of those summer days which may be considered the best which our 

 climate affords. The curve which represents the progression of tempera- 

 ture, approximated very nearly to the character of the mean summer 

 curve, and consequently the comparison of the phenomena observed at dif- 

 ferent places may be expected to afford very curious results. 



20. Mr Foggo's Elementary Treatise on Meteorology. — Mr John Foggo 

 junior, with whose knowledge of Meteorology the readers of this Journal 

 are well acquainted, is at present engaged in an Elementary Treatise on 

 Meteorology, which will speedily be published. A work on this subject 

 has been long a desideratum, and we have no doubt but that it will be well 

 supplied by Mr Foggo's work. 



21. Mean Temperature of the Sandwich Islands. — The following me- 

 teorological journal of the year, from August 1821 to August 1822, was 

 kept by the American Missionaries, we presume at Hawaii, in north lati- 

 tude 194,° an d west longitude 155i°. 



Maxim. Minim. Mean General course Weather, 



heat. heat. Temp. of wind. Days. Rain. 



Mean temperature, according to Dr Brewster's general Formu- 

 la, viz. T =SG°3 Sin. D— 3£° - - - 74°.77 

 Mean temperature observed, - - . - 75 .1 



Difference, 0.33 



The thermometer was observed at 8 a. m., 3 p. m., and 8 p. m. Rain 

 falls but seldom on the western shores of any of the islands, though show- 

 ers are frequent on the eastern or windward sides ; and on the mountains 

 they occur almost daily. — Ellis's Missionary Tour through Hatvaii, p. 7. 



