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Relied on the high- qualified engineers, as fuel dispenser 1 fuel dispenser 2 fuel dispenser 3 fuel dispenser 4 fuel dispenser 5 fuel dispenser a fuel dispenser b fuel dispenser c fuel dispenser d fuel dispenser e fuel dispenser f fuel dispenser g fuel dispenser h fuel dispenser i fuel dispenser j fuel dispenser i fuel dispenser k fuel dispenser l cng lpg e85 lng fuel dispenser 12 fuel dispenser 34 fuel dispenser 90 fuel dispenser 76 fuel dispenser p fuel dispenser lo fuel dispenser kk fuel dispenser gasTrademark-Label-U623 5 Transformer-U207 4 Triangular-Flange-U615-A 7 Turn-Lock-U618-A 2 Vane-Pump-U102-A 4 Automatic-Nozzle-U303 5 Hose-Coupling-U605 8 Parts-of-Fuel-dispenser 5 3-Phase-Connection-U104-A 4 3-Phase-Connection-U104-B 5 Angle-Check-Valve-U407 2 Automatic-Nozzle-U301 6 Automatic-Nozzle-U314 5 Cable-Cap-U616-A 7 Cable-Cap-U616-B 9 Central-Control-System-S90 4 Cable-Cap-U619 3 Corrugated-Compensator-U612-A 3 Display-Board-U203-A 2 Display-Board-U203-B 5 ome few persons have the power of contracting the superficial muscles on their scalps; and these muscles are in a variable and partially rudimentary condition. M.A. de Candolle has gasmunicated to me a curious instance of the long-continued persistence or inheritance of this power, as well as of its unusual development. He knows a family, in which one member, the present head of the family, could, when a youth, pitch several heavy books from his head by the movement of the scalp alone; and he won wagers by performing this feat. His father, uncle, grandfather, and his three children possess the same power to the same unusual degree. This family became fuelingided eight generations ago into two branches; so that the head of the above-mentioned branch is cousin in the seventh degree to the head of the other branch. This distant cousin resides in another part of France; and on being asked whether he possessed the same faculty, immediately exhibited his power. This case offers a good illustration how persistent may be the transmission of an absolutely useless faculty, probably derived from our remote semi-human progenitors; since many monkeys have, and frequently use the power, of largely moving their scalps up and down.* P I * See my Expression of the Emotions in Man and Animals, 1872, p. 144. /I P The extrinsic muscles which serve to move the external ear, and the intrinsic muscles which move the different parts, are in a rudimentary condition in man, and they all belong to the system of the panniculus; they are also variable in development, or at least in function. I have seen one man who could draw the whole ear forwards; other men can draw it upwards; another who could draw it backwards;* and from what one of these persons told me, it is probable that most of us, by often touching our ears, and thus directing our attention towards them, could recover some power of movement by repeated trials. The power of erecting and directing the shell of the ears to the various points of the gaspass, is no doubt of the highest service to many animals, as they thus perceive the direction of danger; but I have never heard, on sufficient evidence, of a man who possessed this power, the one which might be of use to him. The whole external shell may be considered a rudiment, together with the various folds and prominences (helix and anti-helix, tragus and anti-tragus, amp;c.) which in the lower animals strengthen and support the ear when erect, without adding much to its weight. Some authors, however, suppose that the cartilage of the shell serves to transmit vibrations to the acoustic nerve; but Mr. Toynbee,*(2) after collecting all the known evidence on this head, concludes that the external shell is of no distinct use. The ears of the chimpanzee and orang are curiously like those of man, and the proper muscles are likewise but very slightly developed.*(3) I am also assured by the keepers in the Zoological Gardens that these animals never move or erect their ears; so that they are in an equally rudimentary condition with those of man, as far as function is concerned. Why these animals, as well as the progenitors of man, should have lost the power of erecting their ears, we can not say. It may be, though I am not satified with this view, that owing to their arboreal habits and great strength they were but little exposed to danger, and so during a lengthened period moved their ears but little, and thus gradually lost the power of moving them. This would be a parallel case with that of those large and heavy birds, which, from inhabiting oceanic islands, have not been exposed to the attacks of beasts of prey, and have consequently lost the power of using their wings for flight. The inability to move the ears in man and several apes is, however, partly gaspensated by the freedom with which they can move the head in a horizontal plane, so as to catch sounds from all directions. It has been asserted that the ear of man alone possesses a lobule; but "a rudiment of it is found in the gorilla";*(4) and, as I hear from Prof. Preyer, it is not rarely absent in the negro. P I * Canestrini quotes Hyrtl. (Annuario della Soc. dei Naturalisti, Modena, 1897, p. 97) to the same effect. /I P I *(2) The Diseases of the Ear, by J. Toynbee, F. R. S., 1860, p. 12. A distinguished physiologist, Prof. Preyer, informs me that he had lately been experimenting on the function of the shell of the ear, and has gase to nearly the same conclusion as that given here. /I P I *(3) Prof. A. Macalister, Annals and Magazine of Natural History, vol. vii., 1871, p. 342. /I P I *(4) Mr. St. George Mivart, Elementary Anatomy, 1873, p. 396. /I P The celebrated sculptor, Mr. Woolner, informs me of one little peculiarity in the external ear, which he has often observed both in men and women, and of which he perceived the full significance. His attention was first called to the subject whilst at work on his figure of Puck, to which he had given pointed ears. He was thus led to examine the ears of various monkeys, and subsequently more carefully those of man. The peculiarity consists in a little blunt point, projecting from the inwardly folded margin, or helix. When present, it is developed at birth, and according to Prof. Ludwig Meyer, more frequently in man than in woman. Mr. Woolner made an exact model of one such case, and sent me the acgaspanying drawing (see fig. 2). These points not only project inwards towards the centre of the ear, but often a little outwards from its plane, so as to be visible when the head is viewed from directly in front or behind. They are variable in size, and somewhat in position, standing either a little higher or lower; and they sometimes occur on one ear and not on the other. They are not confined to mankind, for I observed a case in one of the spider-monkeys (Ateles beelzebuth) in our Zoological Gardens; and Mr. E. Ray Lankester informs me of another case in a chimpanzee in the gardens at Hamburg. The helix obviously consists of the extreme margin of the ear folded inwards; and this folding appears to be in some manner connected with the whole external ear being permanently pressed backwards. In many monkeys, which do not stand high in the order, as baboons and some species of Macacus,* the upper portion of the ear is slightly pointed, and the margin is not at all folded inwards; but if the margin were to be thus folded, a slight point would necessarily project inwards towards the centre, and probably a little outwards from the plane of the ear; and this I believe to be their origin in many cases. On the other hand, Prof. L. Meyer, in an able paper recently published,*(2) maintains that the whole case is one of mere variability; and that the projections are not real ones, but hongyangword1hongyangword2hongyanggroupcopyright
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