REVIEWS 575 



geology and the biological sciences, it stands second to none. None of these 

 sciences can show such a world-wide distribution of precise results as are col- 

 lected in this atlas of meteorology, in illustration of the geographical dis- 

 tribution of temperature, pressure, humidity, cloud, rainfall, and movements 

 of the atmosphere, with illustrations of their influences over, and interrela- 

 tions with, each other. 



Dr. Hann's Atlas der Meteorologie was the first attempt to chart 

 systematically the data of the science. His atlas, as found in Berghaus, 

 has twelve plates, giving about sixty maps. And, altho this has been 

 brought down to 1887, there has been a very great advance in all lines 

 of the science since then, and the time is ripe for a more complete 

 publication. A mass of widely scattered observations from all over 

 the world is now charted for the first time. 



The 400 maps of this atlas of meteorology are groupt under the 

 two heads of Climate and Weather. The climate maps summarize the 

 great mass of observations, first for the whole world, next for more 

 detailed study of regions specially rich in observational data. There 

 are monthly and annual charts for the elements of climate — tempera- 

 ture, pressure, winds, cloud, sunshine, and rainfall. The weather maps 

 show the most characteristic weather types for given periods over 

 defined regions. 



Preceding the charts there is a general introductory article, and a 

 special discussion of each chart. This will be of the highest value to 

 students of climate and the weather. Appendices give complete lists 

 of all the meteorological services, with all the stations and publica- 

 tions. The frontispiece consists of a graphic charting of the areal 

 distribution of observations over the earth, in which India, Europe, 

 and the United States stand out conspicuously in their dark shading. 

 The volume closes with a glossary of terms, and a critical bibliogra- 

 phy, classified for all lines of research in the subject, both of which 

 will be very helpful. 



The magnitude of the undertaking of the preparation of these 

 charts, and the accuracy we are here dealing with will be better real- 

 ized when some plain statement of the figures is made. The total 

 number of meteorological stations is, in round numbers, 380 of the 

 Order I ; 2620 of the Order II ; 6600 of the Order III, and of Rain- 

 fall, 19,400; total, 29,000; special stations for crop reports will bring 

 the grand total up to about 31,000. 



