Siippkmenf fo Nature, y«w 9, 1904.] 



6 



charging Accumulators, X-Ray work, &c., and testing appliances for the adjustment of 

 instruments generally. 



Pattern Room, fitted with receptacles for their costly and multitudinous patterns ; 

 and also Wood Polishing Room. 



The Machinery on the next floor is driven by two motors connected through auto- 

 matic overload cut-out switches to the main dynamo. This floor is devoted to the 

 manufacture of the heavier Brass, Iron, &c., such as Retort Stand;, Clamps, Crucible 

 Tongs, Tripods, Levelling Screws for apparatus, Bunsen Burners, Triangles, Taps, Bench 

 Uprights, and all the commoner class of apparatus. 



HE.WV METAL WORKING Slior. 



Power Lathes ot various forms are used according to the work required ; Disc Emery 

 Plate for squaring, edging, shaping, &c., may be seen at work, and driven from a separate 

 motor ; Polishing Spindles, fitted to which are pipes taking away by means of an exhaust 

 fan the dust from the mops (this fan also draws air away from the wood polishing shop 

 below, keeping the atmosphere pyre) ; Forge, Soldering 'Hearths, are evidences of the 

 class of work done, and a row of Presses shows that P. H. & Co. are alive to the 

 possibilities of cheapening apparatus by this means. An Atwcod's Machine is a good 

 example of the above: whereas a few years ago such a machine cost about £,12, and 

 even at this price was hardly accurate, now a machine at 30^-. has just been put on the 



J 



