'An annotated original translation of the first part of an article ... [entitled "De la controverse entre Mrs. Leibnitz & Bernoulli sur les logarithmes des nombres negatifs et imaginaires"], published in 1749 ...'.
Imaginary logarithms ... by Leonhard Euler. ISBN 0905531140. Published by Leapfrogs in 1978. Publication and catalogue information, links to buy online and reader comments.