STERILIZING MILK.

Marlborough Express, Volume XXXVI, Issue 226, 27 September 1902, Page 6 (Supplement)

STERILIZING MILK.

Simple Unpwtented Apparatus With Which

It Is Easily Done.

The sterilization of milk for ehildrsn, Bow quite sxtensively practiced in,order to destroy the injurious germi which it may contai% aan be satisfactorily accomplished with very simp&e apparatus. The vessel containing the milk, which maybe the bottle from .which it is to be used or any other suitable vessel, is placed inside of a large* vessel of metal, which contains the water. If a bottle, it, is plngsed with absorbent cotton, if this is at hand, or in its absenca other clean cotton will answer. A small fruit jar, loosely covered, may be used instead of a bottlft. ■ The requirements are simply 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 tKen heated on a range or stove until the water reachesa temperature of 155 degrees F., when iff id removed from the- heat and tightly covered for half an hour. The milk bottle 3 are'then taken out and kept in a cool place. The milk maybe used any time within 24hon^s. A temperature of 150 degrees maintained for hall an hour is sufficient to destroy any germs likely to be present in t.ie milk, and nit Is found in practice that raising the ter-

APPAKATTTS FOB. STEEILIZIKa, MILK.

perature to 155 and-then allowing it to stand in Water for half an hour insures the^'rop^ required time.?s?hetemperature should not be raised above' IS? degree's( otherwise the. taste and quftlity"-ot the mill^ ifvill be impaired. : :[ ~\>. '■'< .. .'. '-. ■ 7 '•■ ' ••''••■-;■■' V/; v v?^'-'. '.'■ The simplest plan is to take a tin paifcatioV invert aperforated tan pie plate in" thebottom, or have jnade; Jor it "a removable jalsebottom perforated w'itb holes and haying legs half an inch high to allow circulation of the water. The iriilk bottle is set -on? this false bottom,;.andrsufficient water* is; put into the pail tor^ach the level of the surface of tbe niilfcitt|the bottle. A hole may be punched in the cover of the pail, a cork inserted.and?a chemical thermometer put through the^cork. sp'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! atWashington.

How the Devilfish Changes Color. The poulp, or devilfish, offersa fine example of a curious phenomenon called "raimetism." Popular Science News says: The animaf in repose presents a pallid; yellowish color; similar to that .of sand. But this color is not fixed. W"heri the animal transports itself from onepointto another where the bottom does not have the same tint, it becomes modified and gives room for the new medium, which is diffused over the animal's surface, forming marbled unduiations. In whatever place it is found the animal becomes confounded with the surrounding objects.

To thistSculty 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 conj;; founded to such a degree that it is impossi1> ble 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 hjss quickly into the sand, coverIng itself with granulations difficult to distinguish from grains of sand. Sepia, used in painting, was formerly manufactured from the contents of the black pocket.

A Fact Worth Rcmemhoriugr.

Rapacious birds and beasts 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 destructive examples if they once escape and become aware of their power, writes Dr. Morris Gibbs in Science. As a fitting illustration of this principle of general acceptance the following instance is offered:

"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 which might have formed their food in the wild state. Within a few months past the pair escaped frotn 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 mangled arid killed over a dozen chickens. This is certainly a much more destructive onslaught than is recorded from the visitations of wild owls in my experience."

A Novel Fire Alarm.

A novel lire alarm has lately been produced in France. It consists cf a hollow sphere of aluminium supported at one end of an arm, with a counterpoise sit the othei end, the two being arranged to balance at the ordinary temperature and pressure oi the air. The apparatus is net sensitive enough to record natural changjes of. pressure, etc., but if some unusual cause, such as fire or even a large accumulation of coal gas In the atmosphere, disturbs the specific gravity of the air, the ball drops and ring* aa electric alarm in falling.

Aluminium Bolts For Boats.

From the known propeitVai at aluminium to resist the, action of salt; wate , it is being used as an alloy—l 2 parts to 88 of othei metals—for bolts for boats. In this_shap» It forms a combination with o whiofc lsof ft bright yellow color and! \ very tough •ay* Tho Manufacturers' Gaze *o.