I'IKMENT THROUGHOUT EUROPE 57 



three En^li.sh milch m .1mm. -t- ited a much 



stronger and a redder light This he compared 



.log coal covered with ashes. These pointa be 

 i in mediately conceived to be burning mountain- 

 two first being either nea hod or beginning 



ii a state of actual eruption. 



I lerachel did not fail to communicate hia observa- 



to the Royal Society ; an<i tin philosophers in thin 

 metropolis waited impatient! \ --w moon, 



li would necessarily confirm the observation, be- 

 cause the eruption would probably not continue above 

 a month, and consequently the phenomena would be 

 then very different, if Mr. Herachel's conjecture was 

 well founded Friday last, the 18th, the first day of 

 the new moon, several philosophical gentlemen attended 

 Mr Herachel at his house in the country ; but the 

 weather was too cloudy to permit any observation. 



next day I did myself the honour to vi-ii him. 

 \\itli two of my friends. Fortunately, the sky was 

 perfectly clear. After having examined, during two 

 hours, the enlightened part of the moon, by means of 

 Mr. Herschel's astonishing instruments, of which it is 

 impossible to form an adequate idea without having 

 seen them, we directed the telescope to the dark part 

 <f this satellite, and the conjecture of this great 

 astronomer was instantly confirmed. The two firet- 



ioned luminous points had totally disappeared, 

 and the fire of the other was become pale and weak. 

 The diameter of ita crater was increased to about six 

 miles. Next month it will probably be entireK 



>. This discovery of volcanoes in the moon is a 



