12 



12. — The apparent force of the whid. 

 13. — The apparent direction of the wind. 



The above will be registered by self-acting mechanism, ex- 

 cept the eleventh, (the course of the vessel,) the indicator of 

 which will require occasional manipulation. 



15. Dr. Lardners Self -Registering Steam Guage, or Experi- 

 ments with Locomotive Engines, constructed for the Committee 

 of the British Association o?i Railway Constants. — The purpose 

 of this apparatus is to register by self-acting mechanism the 

 pressure of steam in the boiler at each point of the road over 

 which the engine passes. 



16. Improved Writing Table, by T. Sopwith, F.G.S.— This 

 table is so contrived that the whole of the drawers, closets, and 

 partitions are fastened by means of a single lock, placed on the 

 flap which forms the writing desk. 



11. A beautiful Miniature Working Model of a High Pres- 

 sure Steam Engine and Plane ing Machine. — By James Frazer, 

 Brass-finisher, Newcastle. 



1 8. Working Model of a Steam Engine with vibrating Pillar, 

 made by John Brown and Son, Grey-street, Newcastle. 



19. Model of a Patent Air Eiigine. — By Crossley&r Parkinson. 



20. Model of Hay and Corn Rake — Hutchinson and Swales, 

 Agricultural Instrument Makers, Newcastle. 



21 . Model of a new Telegraph. — By Dr. Clanny, Sunderland. 

 By this Telagraph, either spelling as in short hand or a vocabu- 

 lary as in the common Telegraph may be employed ; and by 

 attaching to it a powerful lamp, it may be rendered as service- 

 able by night as by day. The introduction of spelling will 

 permit communications to be interchanged in regard to all sub- 

 jects, which in respect to meteorology and other scientific sub- 

 jects appears very important. 



22. Improved Two-armed Telegraph. — By Joseph Garnett, 

 Newcastle. — Thismodel exhibitsthe construction of the telegraph, 

 and the mode of working tlie arms by a more easy and rapid 

 method than the telegraph in common u se. 



23. Drawings of the Signals made by means of J. Garnetfs 



