The Birmingham age-herald., 1911-01-08
CHARACTERISTICS
 OF BIRD MEN Peculiar Things Will Eventual ly be Developed THE NEW TYPE OF MAN Is the Prediction of Scientists, But It Will Take Generations for the Change-PsycholOgis
 Opinion
THE NEW TYPE OF, MAN

|
 ton of the medical sharps. He will be
 a short, topheavy parsonage, with tiny shrivelled up legs, huge elastic heart.
 a colorless, keen, ferrety face, and with beady, birdlike eyes. which can see not only ahead but horizontally outward with out movement of the head. w l The Lancet, one of England's foremost lnedical journals, has held that aviators, owing to different attitudes varying the
 blood pressure. must have circuatory
 systems which can adapt themselves to
 these constant changes of pressure. Carrying this idea further, an eminent
 physician has thus outlined in the Daily
 Mirror his prediction as to the alteration | in the human type which must follow
 when flying becomes general: x With the human heart and vessels as ct presdnt constituted constant high blood
 pressure hardens the arteries In two or l three years, and anyone with hardened ar | teries is liable to death from heart trouble or apoplexy. Obviously, then, the human | machine of the future, when every one l flies as matter of course, will have to be | of very different character from that of. | the present. Fortunately the human ma chine is the most adaptable ever invented.
 See, for instance, how we'll it has grad
 tally adapted itself to the altered condi- l tions of the aerial future. Let me elab- crate. |
 s Large Heart, Ready Eyes First, the aerial man of the future will have a large, elastic heart and fuller ar | teries, so as to stand the strain of con tnual high blood pressure Now, limbs | when not used gradually become smaller | or disappear altogether. The future | mans legs, therefore, will from lack of | use, become smaller and atrophed The necessity for smaller supply of blood to them, coupled with the larger heart necessary, will make for the development | of larger and heavier chest and shoulders The man of the future, therefore, will tend to become rather topheavy, but no more muscucuar
 His face, too will be of the ferrety. coclney type, for it Is the man with this l type of face who always shows his su- periority- over the country-bred man in | his powers of standing intense mental strain His upper jaw will be greatly de- veloped and his expression keen, restless and eterhaly strained Probably the greatest alteration will take place in his | eyes. They may become beady and bird | like. with the power to gaze not only be- fore him, but horizontally outward with out movement of the head, like bird Just to assure the present generation, l however, that no one given to aviation l and it's charm need hasten to leave new
 measurements at his tailors this medical
 man adds
 l "Of course this type of bird man will
 take many, many generations to develop,
 even after flying has become the means
 of general locomotion.''
 Whether the physiological effects of rapid ascents and descents upon the avia-
 tor may be a factor leading to aeroplane accidents is a question considered by the l Lancet
 I "A sound heart and supple arteries are absolutely necessary to an aviator" as- l serts this journal. 'erhe list of distressing l fatalities to aviators has become compar- atively long in a very short time. The &C., l c.dents are always attributed to some me | chanical cause-some breakdown in tho machine or unexpected current of air. No | doubt this is usually true, but 1t seems {, us quite possible that in some cases the
 breakdown may have been in the human machine. which is exposed to new and peculiar stress, both physical and psych- | ical. It is curious that this point does not seem to have received attention" | Reference Is made to certain obserya- | tons recorded by Prof. R. Moulinier on the blood pressure of aviators who have | ascended to high attitudes. The Lancet continues:
 "On aighting after ascending to q height of 12O0 to 20OO metres the aviator presents syanosis of the extremities, prob- | ably from the low temperature of the high | regions of the atmosphere. Often there is congestion of the conjunctivae The pulse | is slightly accelerated. but there is no palpatation, arrhythmia or epistaxis. There is often slight and transient head ache. Sometimes there is a tendency to sleep, and this may be felt during flight. After the flight the blood pressure Is, a- ways increased.
 Due to Rapidity of Descent ''In one, aviator at 5:3O o'clock, before l flight the constant blood pressure in the | radial artery was found with Panchon's spyhgmometer to be nine centimetres of
 mercury and the maximum pressure to De Is centimetres; the pulse was 70. At (
 o'clock, after flight of % minutes, dur ing which at the 20th minute he reached the height of HOO meters, the constant pressure was 12 centimeters of mercury, and his maximum pressure 19 centerme- ters; the pulse was 80. The increase in pressure is all the more remarkable. as
 the aviator was an athlete in full train
 ing. The rise was less marked in avia-
 tors who were fatigued. These showed
 palpatations of the heart and marked &C., celeration of the pulse. Troublesome tachycardia, symptomatic of functional insufficiency of the heart. and vertiginous movements, were observed in an aviator who, after a flight of an hour, had reached the height of 1000 meters. No rise in blood pressure was found in avia- tors who flew at low attitudes, such as 100 to 15O meters.
 "As to the cause of the rise in blood pressure, Professor Mouliner. puts for ward the hypothesis that it is due to the sudden descent to earth in four or five minutes from height of 1000 to 200O me- ters. which was attained in 20 to 9 min
 utes. At a height of 2OO0 meters the at-
 mospheric pressure Is 591 mllimeters of mercury, at the sea level 760 mllimeters
 In the short time of the descent the cir culatory system had no time to become adapted to the change of pressure He, therefore, advises aviators to descend
 more slowly. He also points out the dan-
 gerous fatigue to which flight at high al-
 titude exposes the, circulatory appara atus
 by provoking increased and irregular &C., tivity of the heart and vessels"
 
 BoiIs in Indian Village
 From the Milwaukee Sentinel.