454 



The Valley of iVepaal. 



allowable to calculate the mean temperature of the year from 

 the mean maximum of the day, during the hottest month, and 

 from the mean minimum of the night, during the coldest month, 

 we shall have 55° 3' of Fahrenheit's scale as the mean annual 

 temperature at this place. It is necessary to state* that this 

 latter mode of striking the mean annual temperature is only given as 

 subordinate to the first mode, as the mean minimae taken by me, and 

 the mean maxima by Capt. Robinson were from different instruments. 

 The result is nevertheless of some interest pending the'collection of a 

 more full and correct body of meteorological facts. The mean annu- 

 al temperatures of the air in some of the southern European countries 

 as recorded by Malte Brun, affords a ready means of comparison 

 between the climate of this valley, and the climates of those favoured 

 countries. At Palermo, the mean annual temperature is rated at 62 de- 

 grees of Fahrenheit. The mean annual temperature of Lisbon is 60 

 degrees ; that of Rome 59 degrees of Fahrenheit,and that of Paris 50 a o 

 The mean of these four climates gives a temperature of 55° |- which is 

 the mean annual temperature (according to the more recent authorities 

 than Malte Brun), of Montpellier, the climate of which is unrivalled 

 in Europe or out of it for salubrity to the human species.* The mean 

 annual average of the day at Cathmandu, has been rated above at 62°, 

 of Fahrenheit, and the mean annual temperature of the day and night 

 at 55° 3'. By the first mode of calculating the average, we have at 

 this place a mean annual temperature for the day exactly similar to 

 the mean annual temperature of Palermo, while by the latter method, 

 we have for the day and night a mean annual temperature corres- 

 ponding to that of the sanatarium of all Europe, Montpellier, It is 

 probable, that a temperature between the two, may be found to give 

 the most correct estimate of the mean annual temperature of this val- 

 ley, say 58° of Fahrenheit, which correspond with the estimate now 

 before me of the climate of Montpellier by Malte Brun. The fol- 

 lowing tabular view will render the comparison of these climates 

 more easy.f Fractional parts of a degree not being of much moment 

 in quoting the indication of temperature by Fahrenheit's scale, are 

 omitted. 



* For a notice of the climate of Montpellier, see a paper by Dr. TIoyle in the Asiatic 

 Society's Journal, which is not at present within my reach. Malte Brun rates the 

 mean annual temperature of Montpellier as nearly the same as at Rome, viz. 59 o, but 

 Dr. RoVle from more recent authorities states it at 55°. 



+ Whether I am correct or not in stating the annual mean temperature of Montpellier at 

 55°, does not materially signify, as the recorded statement of Malte Brln making it 

 under 59« brings its estimate so far as temperature is concerned* wonderfully near that 

 of this valley. 



