42 



KNOWLEDGE. 



Apkll. ion. 



both before the Royal Astronomical Society and the British THE MOON AND THE WEATHER. 



Astronomical Association, is now being reduced to a scale of To the Editors of " Knowledge." 



sixty inches, and divided into twenty-five sections. Each Sirs, — May I make a few notes on letters in vour 



section is twefve inches sqnare. with an overlap of half correspondence columns of July and September of last year, as 



an inch, maliing the actual size thirteen inches. The map a contribution towards discussion concerning the influence of 



is nndonbtedlv the best one yet issued, and should prove the moon on the weather. 



MAP OF THE MOON. 



SECTION VII. 



■•'O"'-- N D^J^v^, b> WaLTER GoODACRE. eras 1110 



Figure 1. .A reduced facsimile of one of the sections of a New Map of the Moon. 



a real incentive to the study of selenograpli\-. The fact 

 that the moon's surface has been mapped far more accurately 

 than has much of our own world does not alter the other fact, 

 that there is very much more to learn concerning it. Mr. 

 Goodacre has kindly given permission for the reprodnction of 

 one section (see Figure 1), and this shows how well he has 

 accomplished his work. It is being produced by subscription 

 at the really too low price of 22s. 6d.. about a quarter the 

 price of Schmidt's. It is to be hoped tliat the number of 

 subscribers may verv soon be found to permit of the publica- 

 tion being completed. I'RANK C. DENNETT. 



Mr. Strickland, in July — page 269 — says: " Nasmyth believes 

 it to be demonstrated that as a rule the sky is clearer at full 

 moon than at the quarters." (If fewer clouds, then less rain ; 

 what do the rain-gauges say to this?) "Effect of moon is 

 strongest in Winter in England." (Are tides highest in Winter?) 

 "Equatorial regions .are. par excellence, solar regions and 

 lunar influence is reduced to a niiniuunn." (What about height 

 of tides there coniiiared with temperate regions?) 



Rem.irks on height of tide in Bay of Fundy, and in 

 Mediterranean. — The almost absence of tide in the Mediter- 

 ranean, is dependent u|i.in the small inlet from the Atlantic, 



