78 ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



of the reliability of the various different series, which is highly- 

 valuable to those wlio have occasion to use either this or the 

 earlier volumes of observations. The altitudes of the stations 

 must necessarily almost always be determined barometrically, 

 and in this important matter the researches of Hann on de- 

 crease of temperature, and the admirable hypsometric tables 

 of Rtihlmann, are uniformly used. 



INTERNATIONAL WEATHER TELEGRAPHY. 



Mr. Allison, the meteorological agent of Nova Scotia, has 

 recently communicated to the Scientific Institute at Halifax 

 the following letter from Mr. Scott, the director of the Mete- 

 orological Oflice at London. Mr. Scott says: "The various 

 nations here are establishing centres of their own. These 

 exchange reports daily, and send extra telegrams to each 

 other whenever a storm is reported. Each office then decides 

 for itself whether or not it will warn its own coast. This is 

 the plan we have introduced, and it is adopted by Holland 

 and Norway ; Sweden and Denmark are also about to take 

 it up, and Russia will probably follow suit. The French 

 system of extensive generalization gives a magnificent view 

 of the general condition, but does not enable you to draw 

 conclusions for local storms and w^eather. It is also perfectly 

 impossible for a distant central station to keep its observei'S 

 in check. Telegraphic errors are our hete noh\ and it is ex- 

 pensive work asking for repetitions over long lines ; conse- 

 quently the French reports are seldom if ever corrected before 

 publication, and errors of an inch sometimes appear in their 

 charts, and are never subsequently corrected. The storm 

 signal we use is the drum, and we hang up under it, in a 

 frame, the order to hoist it." Proc. Nova Scotia Sci. Inst.^ 

 IV., 165. 



METEOROLOGY IN THE ARGENTINE REPUBLIC. 



The progress of the science of meteorology has of late years 

 been so decided as to warrant the establishment of the exten- 

 sive systems of storm warnings that are now in operation in 

 every civilized country of the northern hemisphere from India 

 to America. It is therefore with the greatest pleasure that 

 we chronicle the establishment of a National Meteorological 

 Bureau in the Argentine Republic of South America one 



