534 A UNIVERSAL METEOROGRAPH. 



The registering barometer would then give the elevations corresponding 

 to the several records of the temperature, moisture, &c, while an auto- 

 matically registering compass would show the directions taken by the bal- 

 loon in the different strata of the atmosphere traversed by it. In this case, 

 the apparatus should, of course, be protected by an elastic covering capa- 

 ble of preventing shocks when the balloon strikes the earth. There should 

 be placed on the apparatus a notice in several languages that it is not to 

 be opened, but forwarded to a specified address; while by means of 

 articles in the newspapers of even the most distant nations we should 

 endeavor to inform every one of the nature and object of these aerial 

 visitors. This double precaution would doubtless dispel the notion of 

 the unpractical nature of the plan which might at first be entertained. 



