This field work so far done that the mortality prevailed from Boca Grande Pass southward as far as Marco, a distance of about 100 miles, and off shore for a distance not determined annually, but at least fifteen miles, and probably as far as the edge, the continuous shelf, a distance of 100 miles.

The mortality had a moment progressively southward; it developed into a hurricane about October 3. A week or ten days later it was in evidence at Cape May, then at Blind Pass, and reached San Carlos Pass about October 18.

In November 4, dead fish began to upbear on the beach at Marco. The mortality is known to have occurred in the partially enclosed waters of Charlotte Hurl, Pine Island Sound, and San Carlos Islands, as well as in the open field.

Dead fishes were found in large numbers on the beach at Dacos, Cape May, and other islands. Many fish were at times seen floating, but the distribution of the dead fish, both on the beach and alloat, was governed by wind and tide, so that the mere presence of dead fish at a given place was not indicative of a morality.

Sixty-four species, representing thirty-seven families of fishes, were noted. A census of twenty steps of the inside.  Beach of Sanbel Island, about a mile from Point Ybel, gave a total of 163 fishes at and near the water's edge, not including a large windrow east up at high tide. Twenty-six species were represented in this short space. 