- Noiseless Pulley-weights
... a sketch of a pair of pulley-weights recently made, designed by Dr. Sargent, which are excellent. Their merits will be seen at a glance. Instead of the weights swaying sideways and banging against the boxes, as they are liable to do in the ordinary old-fashioned pulley-weight boxes, they travel in boxes, A A, between the rods B B. A rubber bed also prevents the weight from making a noise as it strikes the floor, while another capital feature is the arrangement of boxes, in which you may graduate the weight desired by adding little plates of a pound each, instead of the unchanging weight of the old plan. - Appliance for developing the Sides of the Waist
If one prefers to use apparatus made specially, the cut shows a simple device of Dr. Sargent's, which he made purposely to bring up and strengthen these muscles. Standing in front of it, with head and neck erect and chest out, and grasping the ends of the bar A A', the operator simply turns it, first well up to the right, then to the left, and then repeats the movements until he has enough. As he turns, the rubber straps B B stretch more and more, of course getting stiffer the farther the bar is turned. It would scarcely be possible to hit upon a [p.218]better appliance for improving these valuable side muscles, and yet without fear of overdoing them. - A Correct Position for Fast Walking
- Device for developing the Abdominal Muscles
The latest invention purposely for these muscles is also one of Sargent's, on the following plan: The pupil lies on the plank A A', or, rather, sits on it, when A' is a little back of vertical, so as, for instance, to form with A the angle A B A'. With feet in the toe-straps C C', he sways gently forward and back as long as he can without fatigue. From day to day, as these muscles gain strength, A' is dropped lower and lower, until finally it is on a level with A. Or a strap may be placed over the forehead and fastened to A', and, with the feet in the toe-straps, the person may lift his body up till vertical, drawing the weight E with him as he rises. - A Chest-deepener
Again, to deepen the chest from front to back, he hangs two bars, B and C, and attaches the weight at the other end, A, of the rope, the bar B, when at rest, being about a foot above the height of the head. Standing, not under B, but about a foot to one side of it, and facing it, grasp its ends with both hands, and keeping the arms and legs straight and stiff, and breathing the chest brimful, draw downward until the bar is about level with the waist. Let the weight run slowly back, repeat, and go on. - A Chest-widener
Dr. Sargent's ingenuity has provided a simple and excellent chest expander. He rigs two ordinary pulleys over blocks some feet above the head, and from five to six feet apart, and attaching weights at the floor ends of the ropes, puts ordinary handles on the other ends, and has the ropes just long enough so that when the weights are on the floor the handles are about a foot above the head. Now stand between and directly under them, erect, with the chest as full as you can make it, and keeping the elbows straight, and grasping the handles draw your hands slowly downward out at arm's-length, say about two feet. Next, let the weights drop gradually back, repeat, and so go on. This is excellent for enlarging the whole chest, but especially for widening it. A better present to a consumptive person than one of these appliances could hardly be devised. - A warped University Oarsman, imperfectly developed in Muscles not used in Rowing
With professional oarsmen, who for years have rowed far more than they have done anything else, and who have no especial care for their looks, or spur to develop harmoniously, the defects rowing leaves stand out most glaringly. The man in the figure is one of the most distinguished student-oarsmen America ever produced. - A warped Professional Sculler, imperfectly developed in Muscles not used in Rowing
The figure represents one of the swiftest and most skilful professional scullers of the country to-day. - Horizontal Bar and Chest-bars, for Home Use
All that people need for their daily in-door exercises is a few pieces of apparatus which are fortunately so simple and inexpensive as to be within the reach of most persons. Buy two pitchfork handles at the agricultural store. Cut off enough of one of them to leave the main piece a quarter of an inch shorter than the distance between the jambs of your bedroom door, and square the ends. On each of these jambs fasten two stout hard-wood cleats, so slotted that the squared ends of the bar shall fit in snugly enough not to turn. Let the two lower cleats be directly opposite each other, and about as high as your shoulder; the other two also opposite each other, and as high above the head as you can comfortably reach. - BCC
- BCC
- P
- The babies in the sweet marjoram beds
- Baby
- Course of light in telescope from star to focus
For direct photography or visual observations at the focus of the 72-inch mirror, the reflected cone of star light from the mirror B, is intercepted by a plane mirror also silvered on the front surface, 19·5 inches diameter and 3·25 inches thick placed at 45°. This form of reflecting telescope was first used by Newton, hence the name. The focus is then formed, as shown, at the side of the tube, and if a plate is placed there and accurately guided by small eyepieces with cross wires, photographs of any desired small region in the sky can be obtained, or visual observations may be made. The oculars can easily be reached from the observing platform for any position of the telescope. - The Dominion Astrophysical Observatory - from the south
- Diagram Showing Adaptation to the 'Large-Wheeled Tractor' Idea
The genesis of the “large-wheeled tractor” was as follows: Trenches with a parados and parapet about 4 ft. high were being constructed by the enemy in Flanders. The engineers consulted by the Land Ship Committee gave it as their considered opinion that if these obstacles were to be crossed, a wheel of not less than 15 ft. diameter would be necessary. Machines with these gigantic wheels were actually ordered, but the wooden model that was knocked together as a preliminary at once convinced even its best friends that the design was fantastic, and that any machine of the kind would be little better than useless on account of its conspicuousness and vulnerability. However, the “big wheel” idea did not utterly die, for in the upturned snout of the Mark I. Tank we have, as it were, its “toe” preserved, the track turning sharply back at about axle level, instead of mounting uselessly skyward, as would have been the case had not the old wheel idea been supplanted by that of the sliding track. - Map of Tank Operations, August–November, 1918
- General Arrangements of Mark V. Tank—Front View
- General Arrangement of Mark V. Tank—Sectional Plan
- General Arrangement of Mark V. Tank—Sectional Elevation
- Freshly hatched larva of Julus multistriatus
Freshly hatched larva of Julus multistriatus? 3 mm. long: a, 5 pairs of rudimentary legs, one pair to a segment. - Divider
Divider - Château-Gaillard, Plan
Château-Gaillard, the “Saucy Castle” of Cœur-de-Lion, the work of one year of his brief reign, and the enduring monument of his skill as a military engineer, is in its position and details one of the most remarkable, and in its history one of the most interesting of the castles of Normandy. Although a ruin, enough remains to enable the antiquary to recover all its leading particulars. These particulars, both in plan and elevation, are so peculiar that experience derived from other buildings throws but an uncertain light upon their age; but of this guide, usually so important, they are independent, from the somewhat uncommon fact that the fortress is wholly of one date, and that date is on record. Moreover, within a few years of its construction, whilst its defences were new and perfect, with a numerous garrison and a castellan, one of the best soldiers of the Anglo-Norman baronage, it was besieged by the whole disposable force of the most powerful monarch of his day; and the particulars of the siege have been recorded by a contemporary historian with a minuteness which leaves little for the imagination to supply, and which, by the help of the place and works, but little changed, enables us to obtain a very clear comprehension of the manner in which great fortresses were attacked and defended at the commencement of the thirteenth century. - Carlisle Castle
The city of Carlisle appears first early in the ninth century, in the history of Nennius, as Cair-Luadiit, or Luilid, or the Castra Luguballia, one of the “octo et viginti civitates ... cum innumeris castellis ex lapidibus et lateribus fabricatis,” enumerated by that respectable authority. The fame of Carlisle, however, is due neither to this early mention, nor to the subsequent gift of the place by King Ecgfrid to St. Cuthbert, but rather to its name as a centre of the early cycle of Arthurian romance, well supported by its subsequent celebration in Border tales and ballads. Indeed, whether in fable or in fact, Carlisle enjoys no mean reputation. It played a part in the British, Roman, Saxon, and Danish occupations of the island, and, after having been held as a frontier fortress, by the Scots against the English, became, in its turn, the great stronghold of northern England against the Scots, and the scourge of the wild tribes of the debatable land. - Cardiff Castle, Glamorgan
THE castle of Cardiff, though not unknown to border fame, has been the theatre of no great historical event, nor does it present any very striking peculiarities of position, scenery, or structure. Its claim to more than local interest rests upon the character and fortunes of the great barons whose inheritance and occasional residence it was from the 11th to the 15th century, from the reign of Rufus to that of Henry VI. Probably a Roman castrum, and certainly a hold of the local British princes, it was won, in 1090, by the sword of Robert Fitzhamon, lord of the Honour of Gloucester, and by him constituted the “caput” of his newly acquired seignory of Morgan and Glamorgan. - Caerphilly Castle, Ground plan
Caerphilly Castle, Ground plan A Inner Ward. B Middle Ward. C Kitchen Tower and Water Gate. D Outer Ward. E Great Gatehouse and Pier. F North Postern. G South Postern. H Sluice. I Outer Water Gate. - Caerphilly Castle
For the purpose of the description of the castle itself, the whole may be considered as composed of five parts, each of which will be further subdivided. These parts are:— I.—The Grand Front. II.—The Horn-work. III.—The Redoubt. IV.—The Middle Ward. V.—The Inner Ward. - Caernarvon Castle, Bird’s-eye View
Caernarvon was begun in 1283, immediately upon the execution of David, the last Welsh prince. The first work was that of quarrying the cross ditch, and collecting materials and workmen, the latter being drafted from the English counties. Caernarvon, Conway, Criccaeth, and Harlech, were in progress together, and nothing short of the hope of consolidating his kingdom could have induced so economical a sovereign as Edward to incur expenses which, in one year, for Caernarvon alone, amounted to above £3,000. The king was here for the first time in 1284, in which year, April 25th, Edward of Caernarvon was born, probably in the town. A bird’s-eye view of the castle from the north-west. In the front and centre is the King’s Gatehouse, and next, on the spectator’s right, is the Well Tower, and beyond it, the Eagle Tower. On the extreme left is the interior of the Queen’s Gatehouse, placed between the Granary Tower on the left and the Black Tower. Opposite to the King’s Gate is the Exchequer Tower, and between it and the Eagle is the Prince’s Tower. In the lower or right-hand court are seen the foundations of the hall; next on the left of the King’s Gate is the Dungeon Tower. - Caernarvon Castle, Battlements
The illustration shows the allure or rampart-walk of the Eagle Tower. The rear wall, if it ever existed, has been removed. The cut shows the merlon, with its contained loop, the plain flat-sided embrasure, and the figures placed upon the ridge of the coping, one of which gives name to the tower. The small, shoulder-headed doorway opening from the tower upon the rampart is also seen.