Mr W. K. Brooks, of the John Hopkins University of America, has put forward a new observation regarding oyster spat, which may account for the failure of the fisheries in many parts of this country. He remarks that the young oyster as it settles upon the bottom of the sea is in some localities so covered with sediment that it is killed at a very early stage of existence. He holds that the tender oyster should find a resting-place which must be clean as well as free from destructive pests. He recommends the employment of floating frames furnished with a bottom of galvanised wire-netting for the reception of the fry. Under such conditions, it is found that oysters grow with wonderful rapidity. Anglers know well that the voracious pike is a fish most tenacious of life, and that hours after he has lain in the fishing-creel apparently dead, he is quite capable of giving a snap with his sharp teeth. But few are aware how long a pike will live out of his proper element. A Paris fishmonger recently received a quantity of fish from Rotterdam which were packed in ice. Among these was a pike over two feet long, which, on unpacking, was seen slightly to move its gills. The fish was placed in fresh water, with the result that in a few hours it was fully alive and very active. This fish, as far as can be learnt, was actually out of the water for three days, during which time it travelled nearly three hundred miles. It is now in the Trocadero Aquarium, and seems to have fully recovered from its curious experience. The _Sanitary Record_ informs metropolitan householders that their peace is threatened with a new danger. A London resident found that each time the water was turned on to his house, a plentiful supply of coal-gas was delivered gratis at the same time and through the same pipes. The explanation of the matter is as follows: in the particular street where this strange thing happened, the soil round the water main is completely saturated with gas from leaky pipes. When the water is turned off, there is a vacuum formed in the main, and gas is sucked in through imperfect joints, to be delivered to the unfortunate residents directly the water is again turned on. The matter can of course be easily remedied; but the serious lesson taught by the incident is that gas can find its way to water-pipes, and that sewer-gas may as easily do so as coal-gas.