SCIENCE AND INDUSTRY, 
New York, head of the Engineering Committee of the Submarine 
Defence Association, with the assistance in laboratory matters of Dr. 
S. E. Shepperd and other chemists of the Eastman Kodak Company, 
courteously opened to him, developed a colloidal fuel which, by prac- 
tically doubling the usefulness. of every oil cargo, would of itself have 
materially assisted the defeat of the efforts of the Hun: Ooal or other 
combustible solid,” says Doctor Alexander in explanation, “is prepared 
for dispersion by being pulverized so that about 95 per cent. passes 
through a sieve which has one hundred meshes to the square inch. This 
means, of course, that by far the greatest weight is in particles hundreds 
and hundreds of times larger than colloidal dimensions.” Doctor 
Alexander also described how this new development in chemistry was 
employed by war vessels in creating colloidal clouds for smoke screens 
in order to outwit the pursuing submarines. a 
The British Department of Scientific and Industrial Research has 
approved of the formation of a Research Association for the Motor 
Oycle and Cycle Car Industry, and a grant will be made to the Asso- 
ciation from the fund of £1,000,000 made available by the Government, 
