In a brief previous reference to this mollusc it was stated that the infants in their separate capsules were in a state of progressive development from the base to the apex of the cluster, those in the base being the farther advanced. Investigations lead to a revision of such statement. No favour seems to be enjoyed by first-born capsules. Development is equable and orderly, but as in other forms of life the contents of certain capsules seem to start into being with a more vigorous initial impulse than others, and these mature the more speedily. A sturdy infant may be screwing its way out of its cradle, while in a weakly and degenerate brother alongside the thrills of life may be far less imperative. The pictures illustrate isolated scenes in the life-history of the mollusc, which in a certain sense offers a solution to, the conundrum stated by job "Who, hath begotten the drops of dew?" PROTECTIVE COLORATION July 17, 1909. Found a small cowry shell of remarkable beauty on dead coral in the Bay. At first sight it appeared as a brilliant scarlet boss on the brown coral, and upon touching it the mantle slowly parted and was withdrawn, revealing a shell of lavender in two shades in irregular bands and irregularly dotted with reddish brown spots; the apertures were richly stained with orange, and the whole enamel exceedingly lustrous. Most of the molluscs of the species conceal themselves under mantles so closely resembling their environments as to often render them invisible. In this case the disguise assumed similitude to a most conspicuous but common object of anomalous growth, seeming to be a combination of slime and sponge. CHAPTER XIV SOME CURIOUS BIVALVES Though certain species of molluscs have their respective habitats, and that which is considered rare in one part may be common in another, there are few which have not a general interest for the scientific conchologist. Collectors prize shells on account of their rarity and beauty; the man of science because of the assistance they afford in the working out of the universal problems of nature. Neither a collector nor a scientific student, my attitude towards marine objects is that of a mere observer--an interested and often wonder-struck observer--so that when I classify one species of mollusc as common and another as rare I am judging them in accordance with my own environment and information, not from a general knowledge of one of the most entertaining branches of natural history. From this standpoint I may refer to four or five species which stand out from the rest in interest and comparative rarity.