Page 4 Advertisements Column 1

Manawatu Herald, 5 December 1896, Page 4

STERILIZING MILK. Simple UnpAtented Apparatus With WliicU It Is Easily Done. 1 The sterilization of milk for children, How quite extensively practiced in order to destroy the Injurious germs which it may cont&l^, *a be satisfactorily accomplished with very simple apparatus. The vessel Containing the milk, which maybe the bottle from which ft is to be used or any other suitable vessel, is placed inside of a larger vessel of metal, which contains the water. If a bottle, it is plugged with absorbent cotton, if this is at hand r Or in its absence other clean cotton will answer. A small fruit jar, loosely covered, may be used instead of a bottle. The requirements are Bimply that the interior vessel shall be raised about half an inch above the bottom of the other, and that the water shall reach nearly or quite as high as the milk. The apparatus is then heated on a range or stove until the water reaches a temperature of 155 degrees F., when it is removed from the heat and tightly covered for half an hour. The milk bottles are then taken out and kept in a cool place. The milk maybe used any time within 24 hours. A temperature of 150 degrees maintained for half an hour is sufficient to destroy any germs likely to be present in the milk, and it is found in practice that raising the tern; APPARATUS FOR STERILIZING MILK, perature to 155 degrees and then allowing It to stand in the heated water for half an hour insures the proper temperature for the required time. The temperature should not be raised above 155 degrees; otherwise the taste and quality of the milk will be impaired. The simplest plan is to take a tin pail and Invert a perforated tin pie plate in the bottom, or have made for it a removable false bottom perforated with holes and having legs half an inch high to allow circulation of the water. The milk bottle is set on this false bottom, and sufficient water is put into the pail to reach the level of the surface of the milk in the bottle. A hole may be punched In the cover of the pail, a cork Inserted and a chemical thermometer put through the cork go that the bulb dips into the water. The temperature can thus be ■watched without removing the cover. If preferred, an ordinary dairy thermometer maybe used and the temperature tested from time to time by removing the lid. This is very easily arranged and is just as satisfactory as the patented apparatus sold for the same purpose. The foregoing directions, which will doubtless meet a want of not a few people, are issued by the department of agriculture at Washington. I How the Devilfish Changes Color. ■ The poulp, or devilfish , offers a fine example of a curious phenomenon called "rj*imetism." Popular Science News says: The animal in repose presents a pallid, yellowish color, similar to that of sand. But this color is not fixed. When the animal transports itself from one point to another where the bottom does not have the same tint, it becomes modified and gives room for the new medium, which is difEusedover the animal's surface,- forming marbled undulations. In whatever place it is found the animal becomes confounded with the surrounding objects. To this'fSculty of being able to constantly change its color — useful, for it enables it to escape observation— the poulp joins that of troubling the water around it when it is attacked by an enemy. It possesses for this purpose quite a large gland, the pocket of blackness or ink pocket, containing a blackish liquid. When any one tries to seize the poulp, it contracts quickly this gland, and immediately a very thick black cloud spreads around it. At the same time its skin, a little while ago clear, becomes very dark, so that cloud and poulp are confounded to such a degree that it is impossible for the most clear sighted to tell where the animal has gone. It profits by this 'moment of stupor on the part of its enemy to escape quickly backward or to thrust Itself not ]£ss quickly into the sand, covering itself with granulations difficult to distinguish from grains of sand. Sepia, used ta painting, was formerly manufactured from the contents of the black pocket. J A Fact Worth Remembering. ! Rapacious birds and beay'cs retain their -love of destroying even after years of confinement, and it is a well acknowledged 'fact that among those rapacious animals of !a menagerie which are reared in confinement we find the most ferocious and deIstructive examples if they once escape and [become aware of their power, writes Dr. JMorris Gibbs in Science. As a fitting illustration of this principle of general acceptance the following instance is offered: i "A friend of mine took two half grown young from a nest of the great horned owl 'five years ago last spring. These birds were 'always kept in confinement and were never •in the presence of other birds or mammals jwhich might have formed their food in the .wild state. Within a few months past the pair escaped from their pen, and instead of flying to the woods they immediately ■sought out a henhouse at a neighbor's less 'than 60 rods distant, entered it and manIgled and killed over a dozen chickens. This iis certainly a much more destructive onslaught than is recorded from thevisitaItiona of wild owls in my experience." j A Novel Fire Alarm. ! A novel fire alarm has lately been produced in France. It consists of a hollow sphere of aluminium supported at one end iof an arm, with a counterpoise at the other lend, the two being arranged to balance at ;the ordinary temperature and pressure oi the air. The apparatus is not sensitive 'enough to record natural changes of pressure, etc., but if some unusual cause, sucb as fire or even a large accumulation of coal 'gas in the atmosphere, disturbs the specific 'gravity of the air, the ball drops and rings 'an electric alarm in falling. Ainniinium Bolts For Boati. From the known properties of aluminium Ito resist the action of salt water, it is being itued as an alloy— l 2 parts to 88 of othei Eetals— -for bolts for boats. In this shape forms a combination with copper which of a bright jellow color and is very tough, bays The^^ Manufacturers' Gazette.