424- Cooperative Use of Meteorological Journals. 



siphon, and conduct the contents, when filled 

 up to d, into the jar c. The funnel having a 

 square orifice of 5 in. or 10 in., the proportion 

 between the surface exposed and that in the 

 tube is easily arranged : for instance, the 

 funnel's orifice, ] in. square, one hundredth 

 of an inch of rain falling, gives 100 times 

 that quantity, or exactly a cubic inch of rain 

 in the tube ; which is easily graduated by 

 pouring in that bulk of water, accurately 

 measured, and marking with a file where it 

 rises to in the first two legs. The division 

 into ten parts for a thousandth of an inch 

 may afterwards be done by a rule. The gra- 

 duation in the jar must be for successive con- 

 tents of the tube. The whole is to be enclosed 

 in a small box. 



Toomavara, Ireland, June 13. 1836. 



of meteorology, in 



[We are disposed to render what service 

 we can to the promotion of the prosecution 

 so far as to the inserting of general re- 

 commendations and treatises on principles ; but we wish to 

 stand disengaged from publishing individual meteorological 

 journals, and of preparing and publishing general conclu- 

 sions from them. One may here notice, in obedience to the 

 latter profession, that in the Edinburgh New Philosophical 

 Journal, the number for July 1. 1836, are two treatises, 

 whose titles indicate a great likelihood of their conducing 

 to the elucidation, and the direction of the prosecution, 

 of meteorology : their titles are as follows : — " Questions 

 for Solution relating to Meteorology, Hydrography, and the 

 art of Navigation ; by M. Arago ; " 46 pages, and yet but a 

 continuous portion from a portion published in a previous 

 number. " Instructions for making and registering Meteoro- 

 logical Observations at various Stations in Southern Africa, and 

 other Countries in the South Seas, and also at Sea:" drawn up 

 by the meteorological committee of the South African Literary 

 and Philosophical Institution, the editor believes by Sir J. 

 Herschel, for circulation, and printed in No. I. of the second 

 series of the South African Quarterly Journal ; 14 — 15 pages. 

 Most of our readers are probably aware that the journal of 

 the weather, kept at the Royal Society of London, is re- 

 gularly published in the Athenaum, monthly ; and that, in the 

 Literary Gazette, a meteorological journal kept at Edmon- 

 ton, by Mr. Charles Henry Adams, is published weekly.] 



