S.A. Assn. for Adv of Science. 



1916. Pl. 5. 



Fig. i7. — Four-cycle Diesel Engine of 120 R.H.P. in.stalled by the 

 JMunicipality of Aliwal Xorth. 



Fig. 38.— Two cvcle Diesel Engine of 4.000 B.H.P.. installed at the Ship- 

 building Works of Harland & Wolff, Belfast. 



Prof. J. Orr. -Sources of Energy and Economy in Fuel. 



