MONOGRAPH 



OF THE GENUS 



CASSIDARIA 



Not lost the time in sea-side ramble spent ; 



Braced is the frame, and mental health is gained ; 



Knowledge is gained of Him who made the deep, 



And blissful love acquired of Nature's works. 



Each rock-pool has its treasure, every tide 



Strews on the yellow sand from Ocean's lap. — Landsborough. 



