Note 126 — Chapter II
Reading edition
Dr. Lardner (“Steam-engine,” p. 479) observes that, “when first introduced by Mr. Galloway, each board was divided into six or seven parts; this was subsequently reduced, and in the more recent wheels of this form constructed for the Government vessels, the paddle-boards consist only of two parts coming as near the common wheel as is possible, without altogether abandoning the principle of the split-paddle.”