236 New Patents.— State of the Barometer, fyc. for 1827. 



Theories of Electricity and Magnetism.— This Essay will comrnehce 

 with an Exposition of the General Principles common to both The- 

 ories j which will be followed by particular Applications of them to 

 many cases not hitherto submitted to Calculation. 



In the course of the present month will be published by W. Wood, 

 428 Strand, the 4th and concluding Part of Haworth's Lepidoptera 

 Britannica, with a complete Index to all the species. 



Also, the second edition of Wood's Index Testaceologicus, or Cata- 

 logue of English and Foreign Shells, illustrated with 2300 Figures. 



LIST OF NEW PATENTS. 



To J. Weiss, of the Strand, for improvements on instruments 

 for bleeding horses and other animals.— Dated the 26th of January 

 1828. — 6 months allowed to enrol specification. 



To Augustus Applegath, of Crayford, Kent, for his improve- 

 ments in block printing. — 26th of January. — 4? months. 



To Donald Currie, of Regent-street, "esquire, for a method of 

 preserving grain and other vegetable and animal substances and 

 liquids. Communicated from abroad.— 31st of January.— 6 months. 



Summary, for the Year 1827, of the State of the Barometer, 

 Thermometer, fyc. in Kendal. By S. Marshall, Esq. 



In comparing the preceding summary with that for 1826, it ap- 

 pears that the barometer has not reached the altitude which it then 

 attained, 3078, and the mean height for the year is one tenth of an 

 inch less. The heat of the summer months has not equalled that of 

 1826, the greatest being 74° ; whilst in 1826 the maximum was 85°, 

 and the mean 47°'8I. The superior mean temperature for 1827 

 may be accounted for by the weather's being more uniformly mild. 

 From 26th of April to 21st of November, (or a period of nearly seven 

 months) the thermometer was never so low as the freezing point ; 

 and from the former date to the end of the year, there have been but 



eleven 



