The superintendent of the fishery reported that not a single shark was seen during the 1904 season.[146] According to the statement of Sir William Twynam, whose Ceylon pearl fishing experience and observation equal those of any European, he has never known of a diver being carried off by a shark, and has heard of only one case—“which was a very doubtful one.”[147] Prof. James Hornell, the inspector of pearl banks, reported in 1904: “During all the months I have spent upon the pearl banks during the last two years and a half I have never had a glimpse of a shark dangerous to man. Several times the boatmen have caught basking sharks of considerable size, but all were of a species that lives almost entirely upon small crustaceans.”[148] The late Mr. A. M. Ferguson wrote in 1887: “I think it is pretty certain that in the whole course of the Ceylon fisheries only two human beings have fallen victims to these fierce fishes.”[149] The diving continues until a signal is given from the guard vessel about twelve or one o’clock, this time depending largely on the beginning of the sea breeze which roughens the water and interferes with the work, and likewise serves to speed the passage of the sail vessels to the shore. Occasionally the breeze is unfavorable, and the boatmen are obliged to row for miles, delaying their return in some instances until nightfall. Then the shore is lighted up to guide them to the landings, and extra precautions are maintained to prevent them from getting away with some of the oysters in the darkness. It is claimed—and doubtless with much truth—that it is not unusual for the boatmen to take advantage of the time spent in reaching the shore to surreptitiously open many of the oysters and extract the pearls therefrom, throwing the refuse back into the sea. It would appear from some authorities that this is a general practice. One official—and probably the one in the best position to know—reported in 1905 that more than 15,000,000 oysters, or nearly one fifth of the enormous catch during that season, were illicitly opened.[150] However, this statement is strongly disputed by the superintendent of the fishery, who states: As a matter of fact the opening of oysters that goes on in the boats is of a much more casual description than this. The divers occasionally pick out some of the best looking oysters that happen to be conspicuous, or some that open, and look inside them. It is quite possible that a valuable pearl might be found in this way, but the chances are against it. It is hardly likely that the divers would throw into the sea an enormous quantity of perfunctorily examined oysters in which they have a share and which contain pearls, while they were aware that immediately on landing they could get good prices for their shares.[151]