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rial。 Thus it came about that he obtained Mr。 Green's co…operation in the attempt he now undertook； and； though this ended disastrously； for Mr。 Cocking； the great professional aeronaut can in no way soever be blamed for the tragic event。
The date of the trial was in July； 1837。 Mr。 Cocking's parachute was totally different in principle from that form which； as we have seen； had met with a fair measure of success at the hands of early experimenters； and on the eve of its trial it was strongly denounced and condemned in the London Press by the critic whom we have recently so freely quoted； Mr。 Monck Mason。
This able reasoner and aeronaut pointed out that the contrivance about to be tested aimed at obviating two principal drawbacks which the parachute had up to that time presented； namely （1） the length of time which elapses before it becomes sufficiently expanded； and （2） the oscillatory movement which accompanies the descent。 In this new endeavour the inventor caused his machine to be fixed rigidly open； and to assume the shape of an inverted cone。 In other words； instead of its being like an umbrella opened； it rather resembled an umbrella blown inside out。 Taking； then； the shape and dimensions of Mr。 Cocking's structure as a basis for mathematical calculation； as also its weight； which for required strength he put at 500 lbs。 Mr。 Monck Mason estimated that the adventurer and his machine must attain in falling a velocity of some twelve miles an hour。 In fact； his positive prediction was that one of two events must inevitably take place。 〃Either the parachute would come to the ground with a force incompatible with the safety of the individual； or should it be attempted to make it sufficiently light to resist this conclusion； it must give way beneath the forces which will develop in the descent。〃
This emphatic word of warning was neglected； and the result of the terrible experiment can best be gathered from two principal sources。 First； that of a special reporter writing from terra…firma； and； secondly； that of Mr。 Green himself； who gives his own observations as made from the balloon in which he took the unfortunate man and his invention into the sky。
The journalist； who first speaks of the enormous concourse that gathered to see the ascent； not only within Vauxhall Gardens； but on every vantage ground without； proceeds to tell of his interview with Mr。 Cocking himself； who； when questioned as to the danger involved； remarked that none existed for him； and that the greatest peril； if any； would attend the balloon when suddenly relieved of his weight。 The proprietors of the Gardens； as the hour approached； did their best to dissuade the over…confident inventor； offering； themselves； to take the consequences of any public disappointment。 This was again without avail； and so； towards 6 p。m。； Mr。 Green； accompanied by Mr。 Spencer； a solicitor of whom this history will have more to tell； entered the balloon； which was then let up about 40 feet that the parachute might be affixed below。 A little later； Mr。 Cocking； casting aside his heavy coat and tossing off a glass of wine； entered his car and； amid deafening acclamations； with the band playing the National Anthem； the balloon and aeronauts above； and he himself in his parachute swinging below； mounted into the heavens； passing presently； in the gathering dusk； out of view of the Gardens。
The sequel should be gathered from Mr。 Green's own narrative。 Previous to starting； 650 lbs。 of ballast had to be discarded to gain buoyancy sufficient to raise the massive machine。 This； together with another 100 lbs。； which was also required to be ejected owing to the cooling of the air； was passed out through a canvas tube leading downwards through a hole in the parachute； an ingenious contrivance which would prevent the sand thrown out from the balloon falling on the slender structure itself。 On quitting the earth； however； this latter set up such violent oscillations that the canvas tube was torn away； and then it became the troublesome task of the aeronauts to make up their ballast into little parcels； and； as occasion required； to throw these into space clear of the swinging parachute below。
Despite all efforts； however； it was soon evident that the cumbersome nature of the huge parachute would prevent its being carried up quite so high as the inventor desired。 Mr。 Cocking had stipulated for an elevation of 7；000 feet； and； as things were； only 5；000 feet could be reached； at any rate； before darkness set in。 This fact was communicated to Mr。 Cocking； who promptly intimated his intention of leaving； only requesting to know whereabouts he was； to which query Mr。 Spencer replied that they were on a level with Greenwich。 The brief colloquy that ensued is thus given by Mr。 Green：
〃I asked him if he felt quite comfortable； and if the practical trial bore out his calculation。 Mr。 Cocking replied； 'Yes； I never felt more comfortable or more delighted in my life；' presently adding； 'Well； now I think I shall leave you。' I answered； 'I wish you a very 〃Good Night！〃 and a safe descent if you are determined to make it and not use the tackle' （a contrivance for enabling him to retreat up into the balloon if he desired）。 Mr。 Cocking's only reply was； 'Good…night； Spencer； Good…night； Green！' Mr。 Cocking then pulled the rope that was to liberate himself； but too feebly； and a moment afterwards more violently； and in an instant the balloon shot upwards with the velocity of a sky rocket。 The effect upon us at this moment was almost beyond description。 The immense machine which suspended us between heaven and earth； whilst it appeared to be forced upwards with terrific violence and rapidity through unknown and untravelled regions amidst the howlings of a fearful hurricane； rolled about as though revelling in a freedom for which it had long struggled； but of which until that moment it had been kept in utter ignorance。 It； at length； as if somewhat fatigued by its exertions； gradually assumed the motions of a snake working its way with extraordinary speed towards a given object。 During this frightful operation the gas was rushing in torrents from the upper and lower valve； but more particularly from the latter； as the density of the atmosphere through which we were forcing our progress pressed so heavily on the valve at the top of the balloon as to admit of but a comparatively small escape by this aperture。 At this juncture； had it not been for the application to our mouths of two pipes leading into an air bag； with which we had furnished ourselves previous to starting； we must within a minute have been suffocated； and so； but by different means； have shared the melancholy fate of our friend。 This bag was formed of silk； sufficiently capacious to contain 100 gallons of atmospheric air。 Prior to our ascent； the bag was inflated with the assistance of a pair of bellows with fifty gallons of air； so allowing for any expansion which might be produced in the upper regions。 Into the end of this bag were introduced two flexible tubes； and the moment we felt ourselves to be going up in the manner just described； Mr。 Spencer； as well as myself； placed either of them in our mouths。 By this simple contrivance we preserved ourselves from instantaneous suffocation； a result which must have ensued from the apparently endless volume of gas with which the car was enveloped。 The gas； notwithstanding all our precautions； from the violence of its operation on the human frame； almost immediately deprived us of sight； and we were both； as far as our visionary powers were concerned； in a state of total darkness for four or five minutes。〃
Messrs。 Green and Spencer eventually reached earth in safety near Maidstone； knowing nothing of the fate of their late companion。 But of this we are sufficiently informed through a Mr。 R。 Underwood； who was on horseback near Blackheath and watching the aeronauts at the moment when the parachute was separated from the balloon。 He noticed that the former descended with the utmost rapidity； at the same time swaying fearfully from side to side； until the basket and its occupant； actually parting from the parachute； fell together to earth through seve