[^Siippkmenf to '^A.yvKF-., June (), 1904. 

 5 



&c., may here be seen at work ; these are driven from a line of main shafting extending 

 the whole length of the basement under the machine shop. Themotive power is supplied 

 by a 50 H.P. Gas Engine, with extra heavy fly-wheels, built specially for this firm. This 

 engine also drives a dynamo fitted with fly-wheel which supplies the electricity to run 



BATCH OF ATWOOD MACHINES READY TO BE TESTED. 



electric motors for driving the machinery in positions to which it is difficult to take 

 power from the main shaft, and also to light the whole of the building. 



On the First FIooi- we find a goodly array of Foot- Lathes, Vices, and Work Benches 

 for the manufacture of the finest Scientific Instruments, such as Resistances, Wimshurst 

 Machines, Atwood Machines, Galvanometers of all sorts. Aluminium Pulleys, Thermopiles, 

 Optical Benches, Melloni's Apparatus, Polarimeters, Spectrometers, Microscopes, &c., &c. ; 

 also a Dark Room with electrical current from the main dynamo for testing Arc Lamps, 



