G.—ENGINERRING. 178 
Mileage in’ Ten Thousands. 
Average Mileage obtained from Crank-Axles for Years 1910 to 1921 inclusive. 
Tt will be appreciated that the above result, which is unquestionably 
the result of ‘ ordered knowledge of natural phenomena and the relation 
between them,’ is only one example, if perhaps the most marked one, 
in our experience. A somewhat similar one could, however, be written 
on locomotive tyres and other matters if space and time per mitted. 
This example finishes my general remarks, and I cannot do so with- 
out expressing the indebtedness I feel to ‘the various members of 
the scientific staff of our great firms for all the assistance and help they 
haye eyer so readily given us in the case I have just quoted, 
One would like to press home strongly on engineers generally a point 
made by Dr. Maw in his Presidential Address to the Institution of Civil 
Enginegrs in November last. He pointed out the large amount of 
scientific knowledge—much of which was accumulated during the War— 
which is available at the present day. Here is the knowledge if we will 
but apply it to the service of man. This is our function as engineers. 
Tn times past we have had to wait for this knowledge, and, as I trust 
I have shown, as it slowly became available it has been used in our 
service and in that of the world. One great need is for men with the 
education, the capacity, and the imagination necessary to use this scien- 
tific knowledge for the advancement of our profession. I use these three 
requisites advisedly, for each one of them is necessary to take full. 
advantage of the opportunities which now exist. The trouble is that 
whereas we can supply education, can increase the capacity of the indi- 
vidual, it is difficult to instil or cultivate that imagination which allows 
one to see the way in which the knowledge available can be applied in a 
practical way, 
