1860s antique book health exercise calisthenics gymnastics for proper elocution public speaking

Strange old quack medicine book vintage 1860s, with tons of very interesting old engraved illustrations of exercises to benefit speech makers, probably singers, too.

I have no idea if there's any real science behind this - either from the time 150 years ago when this was published, or by today's scientific thinking. But lung health was a matter of serious importance and interest to many, I know.

This is 388 pages, very worn though looks complete. Paper is very old, foxed and browned but not terribly brittle.