Electrical Engineering in Theory and Practice #251180

In conclusion, I wish to express my sincere thanks to the many manufacturing firms whose names appear in the text as makers of the various appliances, for the loan of blocks, and in some few instances for information relative to their manufactures. I should also much appreciate any suggestions which would add to the educational value and usefulness of the work, and would be glad to receive intimation of any errors which may have escaped my notice in the proofs.