UNKNOWN

Pukekohe & Waiuku Times, Volume 8, Issue 477, 27 May 1919, Page 2 (Supplement)

UNKNOWN

1 1 Vj .V ' \ OOAL-l°A)t •■!*& IfcrAttfOlUsi vs-1 Ooal-tar is an efieetivt) preservative j ftar ruetalwork; bur experiments carried out by the Military Engimwmg Department ot Brest have shown that it is rendered far more efficient by Mm addition of a aiuail quantity of quicklim* in the proportion oi one part of lime to two part* ol tar. I lie mix- . ture, afttr leint; heai<d ;o boiling- . point. is bi ti.sii'-'i upon tL« iiomvork ( &t a teiiipetai'.ire of u'/out one handled and ,twenty d'.givo> I ahrenheii. The t*r should be used ovei a coating ot , r*d lead. A SUBSTITI'TE 10k RI'BBER AND LEATHER. A method has been found toi manufacturing from seaweed n substance which, it 1= declared, 'an be used as an inexpensive substitute tor rubber and leather. Tyres for motor-cars and carriages! it is --aid. caiv be very satisfactorily made of the substance, and the manufacture of boots is now being considered. The seaweed material is not only a preat deal cheaper than either rubber or leather, but it is also believed to be more lasting and more sanitary. 'WARE POISON. Week by week the melancholy result of the "wrong bottle is recorded in the papers. Distinctive labelling is of no avail, and inventors have flooded the market with -'fool-proof bottles. 1 lie latest device is one strikingly named a- the "Rattlesnake bottle. It has been adopted in a certain hospital. Its daylight appearance is .i vivid warning, and the small tinkling bells on the chain round the neck give audible warning if handled in the dark. A combination fiom anothei idea a needle projecting through the cork should give a device as near safety as human ingenu j ity '.an suggest. LIME FROM THE OCEAN. Mining material tor the manufac tuic of lime !roni the bottom of the sea i; one of the unique sights on the Island of Martinique, French West Indies. The bulk of the lime, used on the island is manufactured from madreporic stone or reel coral so mined. It is of >; - ood quality when made with care. Procuring the material for making lime would appear to be a most hazardous employment. The reefs Iroin which the coral rock is taken are in the bay fully a mile from shore. Small dug-outs are floated over the reef, and the coral is brought up from the bottom by hooks or grapnels attached to poles twelve to fourteen feet long. Ihe boats arc loaded until but a few inches of the sides are above water. It requires both skill and experience to load the boats without upsetting and to land the caigo without sinking. SOME INTERESTING DISCOVERIES. Knowledge of the world has been enriched during the past lew yearthrough disi ovciies ui.'.le by about twenty scientific expeditions conducted undei the. uiiettioii <_' i the Smithsonian Institution n. many p.iits. An expedition to the -Via. Mountains of Siberia resulted m '.he collection ot more than six hundred mammals, of which eleven lorms an new to science-. Of unusual interest wa- the Search for j data in Sibeiia concerning the race supposed to lia\< peopled America. Here Doctor Ales llrdiicka, though able to make only .i tapid survey of the seveial localities when- the remains of this race dwell, ga'h>ied extensive information and * ulh l tion-, from ] which be dia'-. ■ it--'' - ".'iclusion that | there exist in sc-vtal pia< es in Siberia, i Mongolia, J ; 'd 1 '- ■' umeious rej mains off an am e ur pop.nation which j was pbyiscally identical .vith and is i all piobfabilit) gave ri-e to '.he. Amefilean Indian. Ihe hunting trip t» j East Africa yielded tie'ii-and.- o! specii mens, aud ■.>ut o! the collection CUM j forty new -p.•<!••- ; nu tweflve MW ! gCliel a, Aeir dr ■ I tird For C'krouie Chest i'oinp aiuts, I Wills' Ureot PeppermlntV'-uo