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ich shut close in （as in winter） is the more； but if it perspire （as it doth in summer） it is the less。〃 This was Bacon the Lord。 What a falling offfrom the experimentalist's point of viewfrom Bacon the Friar！ We can fancy him watching a falcon poised motionless in the sky； and reflecting on that problem which to this day fairly puzzles our ablest scientists； settling the matter in a sentence： 〃The cause is that feathers doe possess upward attractions。〃 During four hundred years preceding Lord Verulam philosophers would have flown by aid of a broomstick。 Bacon himself would have merely parried the problem with a platitude！
At any rate； physicists； even in the brilliant seventeenth century； made no material progress towards the navigation of the air； and thus presently let the simple mechanic step in before them。 Ere that century had closed something in the nature of flight had been accomplished。 It is exceedingly hard to arrive at actual fact； but it seems pretty clear that more than one individual； by starting from some eminence； could let himself fall into space and waft himself away for some distance with fair success and safety； It is stated that an English Monk； Elmerus； flew the space of a furlong from a tower in Spain； a feat of the same kind having been accomplished by another adventurer from the top of St。 Mark's at Venice。
In these attempts it would seem that the principle of the parachute was to some extent at least brought into play。 If also circumstantial accounts can be credited； it would appear that a working model of a flying machine was publicly exhibited by one John Muller before the Emperor Charles V。 at Nuremberg。 Whatever exaggeration or embellishment history may be guilty of it is pretty clear that some genuine attempts of a practical and not unsuccessful nature had been made here and there； and these prompted the flowery and visionary Bishop Wilkins already quoted to predict confidently that the day was approaching when it 〃would be as common for a man to call for his wings as for boots and spurs。〃
We have now to return to the 〃tame goose〃 method； which found its best and boldest exponent in a humble craftsman； by name Besnier； living at Sable； about the year 1678。 This mechanical genius was by trade a locksmith； and must have been possessed of sufficient skill to construct an efficient apparatus out of such materials as came to his hand； of the simplest possible design。 It may be compared to the earliest type of bicycle； the ancient 〃bone shaker；〃 now almost forgotten save by those who； like the writer； had experience of it on its first appearance。 Besnier's wings； as it would appear； were essentially a pair of double…bladed paddles and nothing more； roughly resembling the double…paddle of an old…fashioned canoe； only the blades were large； roughly rectangular； and curved or hollowed。 The operator would commence by standing erect and balancing these paddles； one on each shoulder； so that the hollows of the blades should be towards the ground。 The forward part of each paddle was then grasped by the hands； while the hinder part of each was connected to the corresponding leg。 This； presumably； would be effected after the arms had been raised vertically； the leg attachment being contrived in some way which experience would dictate。
The flyer was now fully equipped； and nothing remained for him save to mount some eminence and； throwing himself forward into space and assuming the position of a flying bird； to commence flapping and beating the air with a reciprocal motion。 First； he would buffet the air downwards with the left arm and right leg simultaneously； and while these recovered their position would strike with the right hand and left leg； and so on alternately。 With this crude method the enterprising inventor succeeded in raising himself by short stages from one height to another； reaching thus the top of a house； whence he could pass over others； or cross a river or the like。
The perfecting of his system became then simply a question of practice and experience； and had young athletes only been trained from early years to the new art it seems reasonable to suppose that some crude approach to human flight would have been effected。 Modifications and improvements in construction would soon have suggested themselves； as was the case with the bicycle； which in its latest developments can scarcely be recognised as springing from the primitive 〃bone…shaker〃 of thirty…three years ago。 We would suggest the idea to the modern inventor。 He will in these days； of course； find lighter materials to hand。 Then he will adopt some link motion for the legs in place of leather thongs； and will hinge the paddle blades so that they open out with the forward stroke； but collapse with the return。 Then look on another thirty…three yearsa fresh generationand our youth of both sexes may find a popular recreation in graceful aerial exercise。 The pace is not likely to be excessive； and molestations from disguised policemennot physically adapted； by the way； to rapid flightneed not be apprehended。
One of the best tests of Besnier's measure of success is supplied by the fact that he had pupils as well as imitators。 First on this list must be mentioned a Mr。 Baldwin； a name which； curiously enough； twice over in modern times comes into the records of bold aerial exploits。 This individual； it appears； purchased a flying outfit of Besnier himself； and surpassed his master in achievement。 A little later one Dante contrived some modification of the same apparatus； with which he pursued the new mode of progress till he met with a fractured thigh。
But whatever the imitators of Besnier may have accomplished； to the honest smith must be accorded the full credit of their success； and with his simple； but brilliant； record left at flood mark； the tide of progress ebbed back again； while mankind ruminated over the great problem in apparent inactivity。 But not for long。 The air…pump about this period was given to the world； and chemists were already busy investigating the nature of gases。 Cavallo was experimenting on kindred lines； while in our own land the rival geniuses of Priestley and Cavendish were clearing the way to make with respect to the atmosphere the most important discovery yet dreamed of。 In recording this dawn of a new era； however； we should certainly not forget how； across the Atlantic； had arisen a Rumford and a Franklin； whose labours were destined to throw an all…important sidelight on the pages of progress which we have now to chronicle。
CHAPTER II。 THE INVENTION OF THE BALLOON。
It was a November night of the year 1782； in the little town of Annonay； near Lyons。 Two young men； Stephen and Joseph Montgolfier； the representatives of a firm of paper makers； were sitting together over their parlour fire。 While watching the smoke curling up the chimney one propounded an idea by way of a sudden inspiration： 〃Why shouldn't smoke be made to raise bodies into the air？〃
The world was waiting for this utterance； which； it would seem； was on the tip of the tongue with many others。 Cavendish had already discovered what he designated 〃inflammable air；〃 though no one had as