About four a.m., about an hour before the tide was at its height, the inhabitants of St. Mary’s were aroused by the loud hooting of the syren of the mail steamer Lyonesse. Men hurriedly rushed to discover the cause, and in doing so incurred considerable risk, as huge volumes of water were dashing over teh quay, doing damage in every direction, and washing away everything not permanently secured. The steamer in a dangerous position held on to her moorings with the greatest difficulty. A number of small craft were washed out to sea, but were ultimately recovered. The damage done is increased by the fact that the flower season is now in progress. At Bryher, the neighbouring island, seas broke over the flower and potato fields, doing great damage. Happily, the wind was light, or much more serious results would have ensued. The Lyonesse subsequently passed over to Penzance, the passage being difficult on account of the heavy seas. The effects of the tidal wave were felt in Penzance, heavy seas dashing over the promenade, and deluging the streets and houses in the vicinity. Torrential rains were also experienced.