146 Analyses of Books. [FER. 
Dr. Wahlenberg kept a register of the height of the thermometer 
at Kesmark, from Aug. 11 to Oct. 11, 1813. The following table 
exhibits a comparison of these observations with those at Buda :— 
Kesmark,} Buda. | Difference. 
Aug. 11 to 31...... Mean of the highest points ..| 62:09° | 69°42° Tos" 
Witte Vowesty 2 .teinc'orsieenne 50°52 | 60:64 10°12 
Sept. 1 to 20 ...... Ditto highest: .. 26. ..cccsnee 57°56 | 64:02 6°46 
Ditto lowest 2.5 seas oveie eee A433 | 56°14 11°81 
Sept.21 to Oct. 10 Ditto highest........0+e++e0 50°16 | 57-88 172 
Ditto lowest. © dec an acte' 40:06 AY°85 9-79 
We see from this table that there is a much greater difference 
between the temperature of Kesmark and Buda during the night 
than during the day. The mean of the difference between the 
lowest, or nocturnal temperatures, is 10°57, while the mean of the 
difference between the highest, or diurnal temperatures, is only 
7°17. The mean of all the differences is 8°87. Probably the 
mean temperature of Kesmark is so much lower than the mean 
temperature of Buda. 
Wahlenberg made some observations on the mean temperature of 
the earth in the Carpathian mountains by determining the heat of 
springs in different places. The following are the results which he 
obtained. 
Two fountains in the valley of Lubochna, at the height of 1781 
feet above the level of the sea, had the following temperatures :— 
dalysR pt LES Ae phys jeves BC Gs selene (845 
PASTE begat a Reet rare a me, didjes ogee PEO poe 
A fountain a little higher up, issuing from the bottom of the 
mountain, was as follows :— 
July 8, 1813 eseeeveveeerevre eevee ee eevee 44:6° 
26 eer @ewreveaeseeaeee oe .4 @6 ome 8 @eerveaeee 44°6 
On the other side of the valley, almost at the same height, an- 
other fountain was found of the following temperature :— 
BT OE ee a ES Lets oh act a 5, a2) a15t ROOD 
These springs give undoubtedly the temperature of the earth, and 
show that at the height of 427 feet above the limit of the walnut- 
trees this temperature is not lower than it is in Switzerland at that 
limit ; for the temperature of the earth in Switzerland at the limit 
of the walnuts does not exceed 44°6°. 
At Botza, at the height of 3617 feet above the sea, an excellent 
and well-covered fountain was of the following temperature :— 
Setly, BO Foe Sees paws ON ie eee ROE? 
Aug. 11 ee ee ee ee ee ee 40°28 
A few miles west from Botza there is a fountain, called Weiss- 
