VOLUME u....NUMBER 44.
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 increasing the destructive effects of their rude weapons. Among these which he observed. he notices some kind cf euphorbia, and of the wild sumack of those regions. Thunberg men- tioas that.the Hnttcntots are in the habit of using for the same purpose, the venom of serpcnts and the juice of a vegetable, the sic derorHium forifernm. The various tribes of South American savages have acquired the knowleds sc ofthe poisonous properties of ma ny species If plants, which they convert to similar uses, as among the Javanese, and the mode ofpreparmg them is entrusted to cer- tain old men or magcans among them.- These poisoned arrows were also known a. mlng some of the aboriginal tribes of our own continent, and one of the plants made use of was the gonolo6us macrocarhus, of Michaux.

 

 Eipht 5etzpern tzoo Tigers and q Lion M the T'o7vsr.--Betwecn eleven and twelve o'clock yesterday morning, as the man whose dfNN S was Mh Mh fea fagss f uth YSda YS RsNss at the inadvertently raiscisa doorin theupper tier ot cells, which separated the den of d huge lion frorTI one in which there was a huge Bengal royal tiger and tigress. At sight of each other the eyes of the animals sparklcd with rage The lion instantly erected his mane, and with tremendous roar, sprang at the tiger. The tiger was equally eager for the combat, and in paroxysm of fury, flew at his assailant, whilst the tigress iercely seconded her mate. The roaring and yelling oft the combatants re- sounded through the yards, and excited in all the various animals the most lively demon- strations cf fear or rage. The tinid tribes shivcied with dread, and ran round their ca gcs shvering with terror, whilst the other li- ons and tigers, with the bears, leopards and ppnthers, wolves and hyenas flew round their dens, shaking the bars with their ut most strength, and uttering the most terrific cries. The lion fought most bravely, but was evidently overmatched, having to contend with two adversaries not more than year 1 iron, the woods, whilst he had been upwards | of seven years in confinement. Still the bat tie ragged with doubtful success, until the t 1 ger seized the lion by the throat, and flung him on his back, when, after rolling over each other several times, the exasperated tigress pinned her enemy against the veran- ta. In that situation the prostrate lord Of the forest still struggled with indomitable spi- r't, roaring with agony and rage. By this time, however, some iron rods had been heat ed, the red-hot ends of which was applied to the mouth and nostrils of the infuriated ani- mals, who were by this means forced to re- linquish their grasp: but no sooner was the separation effected, than the lion and tiger seized in their mouths, the one the upper, the other the lower jaw of his antagonist, biting and tuggng at each other with deadly fury. So excited was their animosty, that it was with the greatest dificulty, by the insertion in- tqtheir nostrils of the glowing ron, they could be disenrared- and the lion driven back to his cell, the door of which was instantly clo- sed upon him. The battle lasted full half an hour. The tiger in the last onset, lost one of his tusks, but the poor lion was severely punished. London hafer.

 Diamond 1ficroscohe.- all the various substances furnished by nature or art, the diamond seems to be that most preeminently calculated to form small deep lenses for sin gle microscopes, possessing most enormous refractive power, combined with a low dis l persve one, together with very little longitudinal alteration. Mir A. Pritchard, No. IS Pickett street, Stran1, has succeeded in forming very thin double convex lens, of equal raclii, and about 125th inch focus, from ' perfect stone of the finest water. Its po- lish is very beautiful, and by it's strong rehec- tive power at once shows the peculiar and invunerable material of which it consists; while the large angle of apperture which it bears, attests the fiintness of its spherical chromatic alterations It appears from ex- pertinent, that through the refractivepower of different stonesvaries sconsiderably, if fadiamond and piece of plate glass are ground in tools of the same figure and radius, the nagnifying power of the former will surpass that of the latter, as to 5, so that if the power of the glass microscope should be "A, that ot the dia- mond will be GA! What a lift docs this give to the construction of deep single microscopes. | .Nezv Monthly Magazine.

 Earl StauAohe's Calculating Machinery. The smallest machine, which is intended for the two first rules of addition and sub traction, is not larger than an octave volume; and by means of dial plates, and small indi- ces moveable with steel pin, the operations are performed with undertaking accuracy The second, and by far the most curious in . strument, is about half the size of a common table writing desk. By this, problems in null tiplication and division, of almost any extent, are solved without the possibility of mis- , take, by the simple revolution of small winch The multiplier and multplicand in one instance, and the divisor and dividend in the other, are first properly arranged; then, by turning the winch, the product or quotent is found. What always appears singular and surprising to spectators is, that in working sums in division, Slc., if the operator be inat. tentive to his business, and thereby attempts to turn the handle a single revolution more than he ought, he is instantly admonished of his mistake by the sudden springing up of a Il small ivory ball. l.-.Nczr Monthly Margarine.

 United States Stock.-The Secretary ofthe I Treasury has given notice to the proprietors of the Four and d: per cent stock, issued in pursuance of an act of Congress passed on the Sd of March 1925, in exchange for stock bearing an interest of six per cent, that the cer- tifcates of the said stock, amounting in the whole to one million five hundred and thirty nine thousand three hundred and thirty-six dollars and sixteen cents, will be paid on the