INDUSTRIAL LABOUR 



443 



up the stones from the ground, passes them to a second man, 

 who throws them to a third man, who deposits them in an en- 

 closure (vide fig. 304). 



Fig. 304. 



Labourers handling paving stones, showing 

 defective attitudes (J. Amar). 



(5) Rapid work, under the foregoing conditions, only demands 

 short intervals of rest, but this rest must be complete. 



(6) The working platform of the scaffolding should be 

 65 metres below the top of the wall. 



Figs. 205 and 206 show suitable arrangements of scaffolding 

 and building material. 



Fig 305 Scientifically arranged scaffolding. 



