ACTION OF THE HEAT.

Te Aroha News, Volume VII, Issue 292, 22 August 1888, Page 2

ACTION OF THE HEAT.

As with eiich sfcioke the heart projects something like six ounces of blood into ! the conduils of the system, and as it does so some 70 times evi>ry minute and 4200 tiiioes in :ui hour, this implies that it does the sumo thing 100,800 times, in 24 h0ur5, 30,000,000 timesinayearandmore that) 2,500,000,000 times in a lifetime of 70 years. The mechanical force that is exerted at each stvoke amounts to a pressure or 13 pounds upon the entirecharge of blood that has to be pressed onward through the branching network of vessels, According to the lowest estimate that has been made, this givesan exertion of force that would be adequate, in another form of application, to lift 120 tons one foot high every 24 hours, Yet the piece of living mechanism that is called upon to do this, and do it without a pause for threescore years and ten, without being itself worn out by the effort, is a small bundle of flesh thnfc rarely weighs more than 11 ounces. It; \ is in the nature of the caae, also, it must be remembered, that this vital machine cannot be at any time stopped for repairs. If it gets out of order it must be set right as it runs. To stop the beating of the heart for the briefest interval would be to change life into death. The narrative of what medical science has doueto penetrate into the secrets of this delicate force-pump, so jealously guarded from the intrusion of the eye that it cannot even be looked into until its action, has ceasod, is, nevertheless, a long history of wonders. — Edinburgh Review,

As showing the effect of the firmness of the frozen meat market at Home, the next six steamers of the S.S. and Albion Company and the New Zealand Shipping Company to leave the colony, have the whole of their meat space fully taken up. The carrying capacity of these vessels combined will be equal to about 195,000 carcases of mutton. AYo learn that most of tho consignments are on grazieis' account, and tho bulk of the spaco has been secured for the South Island. A somewhat novel manner of saluting: tho dead was adopted by the Maoris at the Tangi over the chief Tutnki. Instead of tho customary volley from rifles, tho niouiners at the pah showed their respect to the chief by the explosion at intervals of dynamite cai tridges ! This is a wrinkle for the Pakeha.