318 Meteorological Observations for August 1830. 



To J. Ruthven, Edinburgh, engineer and manufacturer, for an 

 improvement in machinery for the navigating of vessels and propelling 

 of carriages. — 5th of August. — 6 months. 



To J. Down, Leicester, surgeon, for certain improvements in 

 making gas for illumination, and in the apparatus for the same. — 

 5th of August. — 6 months. 



To J. Street, Clifton, Gloucestershire, esquire, for a new mode 

 of obtaining a rotary motion by water, steam, or gas, or other va- 

 pour ; being applicable also to the giving blast to furnaces, forges, 

 and other purposes where a constant blast is required. — 5th of 

 August. — 2 months. 



To VV. Dobree, Fulham, Middlesex, gentleman, for an indepen- 

 dent safety-boat of novel construction. — 5th of August. — 6 months. 



To W. Lane, Stockport, Cheshire, cotton- manufacturer, for cer- 

 tain improvements in machines, which are commonly known among 

 cotton -spinners by the names of roving-frames, or otherwise called 

 cove-frames, or bobbin- and fly-frames, or jack-frames. — 5th of 

 August. — 4 months. 



METEOROLOGICAL OBSERVATIONS FOR AUGUST 1830. 



Gosport: — Numerical Results for the Month. 



Barom. Max. 30-33. Aug. 31. WindN.W.— Min. 29-43. Aug. 28. WindS.W. 

 Range of the mercury 0-89. 



Mean barometrical pressure for the month 29-950 



Spaces described by the rising and falling of the mercury 5-310 



Greatest variation in 24 hours 0-500. — Number of changes 19. 

 Therm. Max. 75°. Aug. 1. Wind S.W.— Min. 44°. Aug. 29. Wind W. 

 Range 31°.— Mean temp.of exter. air 59°79. For 31 days with in ft 62'81 

 Max. var. in 24 hours 21°'00.— Mean temp, of spring-water at 8 A.M. 52-77 



De Luc's Whalebone Hygrometer. 



Greatest humidity of the atmosphere, in the afternoon of the 14th 91° 



Greatest dryness of the atmosphere, on several days 48 - 



Range of the index 43"0 



Mean at 2 P.M. 59°-8.— Mean at 8 A.M. 66°-9.— Mean at 8 P.M. 740 



of three observations each day at 8, 2, and 8 o'clock 66 9 



Evaporation for the month 3-50 inches. 



Rain in the pluviameter near the ground 3-40 inches. 



Prevailing wind, S.W. 



Summary of the Weather. 



A clear sky, 3; fine, with various modifications of clouds, 16^; an over- 

 cast sky without rain, 6; rain, 5£. — Total 31 days. 



Clouds. 



Cirrus. Cirrocumulus. Cirrostratus. Stratus. Cumulus. Cumulostr. Nimbus. 



22 11 30 1 24 29 20 



Scale of the prevailing Winds. 



N. N.E. E. S.E. S. S.W. W. N.W. Days. 

 \\ \\ | 2 1 10| 8 6 31 



General 



