The daily Alaskan., 1916-08-22

chip Before It Gets In It's Work,
 pashins Out of It's Range ls Merely
 a MattOr of Seconds and Agility.
 There are well defined rules for the avoidance of Zeppelin bombs. These rules, 1t seems. depend upon the laws of spherical perspective, and however esoterlc and complicated the calcula- tions upon which they are based the actual practice of bomb lodging Is relatively simple and easy to master.
 When "Zep" is sighted in the oting the first thing to do is to determine Its course. This is done as follows: If 1t appears to be standing on end and Is practically vertical you are, leaving out of account any cross wind there may be, pretty nearly in it's path and should get ready to run to right or left-that Is, at right angles to the course 1t is pursuing. Even If you are directly in it's path there is no danger from the bombs except when 1t is nearly over your head.
 And because the bomb takes a very considerable time to reach the earth probably twenty-five seconds when the Zep is at an attitude of a mile) you will have a reasonable time to side, step" 1t even after seeing 1t start But any one who can't run a hundred yards, which Is about the limit of the deStructiYeness of one of these mis. sies, in twenty-five seconds, especially with the stimulus of a bomb chasing him, hasn't very much excuse for not being blown up in this athletic age. If, on the other hand, the Zep when sighted appears to be tipped one way or the other-thut is, its front or upper end points to the left or right-yOu are ln no danger and can watch its destruc tive fireworks without any of the un, pleasant thrills associated with the peril of imminent death. If the bow appears inclined to the left the vessel will pass to the left, and if tipped the other way, of course, to the right Some allowance, however, must be made for cross winds. as these great unwieldy bags have very consider able side drift
 It is said to be usually easy to make these observations by means of the un aided eye with sufficient accuracy to protect oneself. But in case the Zep should appear very close to an upright position 1t may help the observer to get into a place where the vessel Is partially covered by the edge of a house, d fagpOle or other vertical line If the Zep appears to be climbing the edge of the house or the dagpole to- ward the zenith the observer is likely to have an immediate personal interest in Its visit. In case there is no house or flagpole available plumb line made by a stone tied to a string will serve tbe same purpose.
 By following these few simple rules, says Professor E. c. Pickering, there Is little excuse for any one on the lookout and able to get about with reasonable speed being caught by either Zeppe- lin or an aeroplane bomb.
 It may be of interest while on the subject to make few abstracts from the description by a British scientific observer of the fall of these bombs:
 "The bombs could be heard approach, ing as they rushed through the air. The whistling nOlSe-a little like the tearing of calico or the noise made by gigantic rOcEet-beCame a CreScendO shriek of terrific intensity just before the bomb struck the ground and the explosion occurred. l estimated the height of the Zeppelin as about 4,OOO feet and, negIectiug air resistance, this would give the bombs q final velocity of about 500 feet per second The ac, tual speed was probably less than this and is considerably less than the veloc. ity of sound Q,l00 feet per second), which accounts for the fact that the bombs can be heard before their ar rival
 Standing, as was, at about POO yards from where one of the bombs fell the noise of the actual explosion did not appear to be very loud. The reason is probably to be sought in the almost complete numbing of ones senses. The feeling was much the same as If one had been given a hard blow between the eyes with a bolster or some relatively soft object. heard piece of bomb zip past me and after ward found 1t imbedded In a balk of timber about two yards from where was standing"
 Upon the explosion of the bombs a huge cloud Of black smoke rose Into the air. The destruction caused in their immediate neighbOrhood showed curious freakishness The worst harm was done in what appeared to be pockets of high pressure extending out In various directions, but apart from the possibility of being struck by flying