1876: The science and geometry of dress
by Jackson, Louisa L., Mrs. [from old catalog]
So this is really interesting and does indeed help explain the fish dart in some garments.
The basic pattern blocks for bodices were still based on ones from the 1860s. This is to say the end at the waist. I’m started printing the pages up . The first section is for the basic bodice block, then there is a saque, next up are basques (ie bodices that extend past the waist.) So this is very exciting 🙂 My printer is liking the pages so that is also good!