He published his findings in a series of articles in "The Railroad and Engineering Journal" from 1891 to 1893, which were then re-published in the influential book "Progress in Flying Machines" in 1894.
Он написал серию статей, которые публиковал сначала в "The Railroad and Engineering Journal" с 1891 по 1893 годы, в затем собрал их в книгу "Прогресс летающих машин" () в 1894 году.