PROPERTIES OF PURE GRAPHITOID AND ADAMANTINE BORON. 691 




with the following metals: lead, tin, copper, antimony, bismuth, iron, mag- 
nesium, and zinc ; and have obtained some very interesting results, but we have 
not as yet finished that research. The success of the boron experiments led us 
to try with carbon also, and the results have quite equalled our expectations. 
We are at present engaged with these experiments, and hope at some future 
time to lay the results before the Society. 
