Chapter XVII: Letter XII: "one antennæ" unchanged

"reside in them," changed to
"reside in them."

Appendix

"the cirumference is edged" changed to
"the circumference is edged"

"he could have proportioned the tortous canal" changed to
"he could have proportioned the tortuous canal"

"pressed between the laminae" changed to
"pressed between the laminæ"
}