No. of grains. Water 964.74 Chloride of Sodium (Table salt) 27.06 Chloride of Magnesium 3.67 Sulphate of Magnesia (Epsom Salts) 2.30 Sulphate of Lime 1.40 Carbonate of Lime 0.03 Carbonate of Magnesia ⎫ Carbonic Acid ⎪ Potash ⎬ Traces Iodine ⎪ Extractive matter ⎪ Bromide of Magnesium ⎭ ---------- 1,000 There are few, we imagine, who have not at one time or another admired the luminous appearance of the sea on certain evenings. This astonishing and beautiful phenomenon is brought about by the presence in the water of myriads of tiny beings, called Noctilucæ, which possess the power of emitting a phosphorescent light, and seemingly convert the bursting waves into masses of liquid fire. The immense expanse of sea spreading out from the westerly border of the Fylde has, independently of its association with the Gulph Stream, a marked influence in equalising the climate and averting those sudden and extreme degrees of heat and cold commonly experienced inland. The atmosphere over water does not undergo such rapid alterations in its temperature as that over land, and hence it happens that localities situated near the coast are cooler in summer and warmer in winter than others far removed from its vicinity. Most people will have observed that after a calm sunny day at the seaside, a breeze from the land invariably arises after sunset, due to the fact that the air over the earth being cooled and condensed much sooner than that over the sea, the heavier body of atmosphere endeavours to displace the warmer and lighter one. A gentle evaporation is daily taking place from the surface of the sea, by which the air becomes loaded with moisture, remaining suspended until the coolness of evening sets in, when it is deposited on the ground as dew. The water thus obtained from the deep is not pure brine, as might at first sight appear, but is freed from its salts by the process of natural distillation which has been undergone. Similar evaporation also goes on from the surfaces of the Ribble and Wyre, and it is doubtless chiefly owing to the Fylde being almost environed by water, constantly disseminating dew, that its fecundity is not only so great, but also so constant. The following is a list of the seaweeds to be found on the coast:— MELANOSPERMEÆ OR OLIVE GREEN SEAWEEDS. TRIBE—FUCACEÆ. Fucus nodosus Knobbed Wrack ” serratus Serrated ” ” canaliculatus Channelled ” ” vesiculosus Bladder ” TRIBE—SPOROCHNACEÆ. Desmarestia aculeata Spring Desmarestia ” viridis Green ”