Note 1 — NOTES AND CORRESPONDENCE.
Reading edition
“Your drawing refers to the shell of a full-grown snail, shown by its having six whorls, and by the slight reflex curve at the outer end of the spiral.1
Reading edition
“Your drawing refers to the shell of a full-grown snail, shown by its having six whorls, and by the slight reflex curve at the outer end of the spiral.1