VIGILANS--The Laws of Auroral Derangements are still imperfectly understood. Any overheated motor may of course “seize” without warning; but so many complaints have reached us of accidents similar to yours while shooting the Aurora that we are inclined to believe with Lavalle that the upper strata of the Aurora Borealis are practically one big electric “leak,” and that the paralysis of your engines was due to complete magnetization of all metallic parts. Low-flying planes often “glue up” when near the Magnetic Pole, and there is no reason in science why the same disability should not be experienced at higher levels when the Auroras are “delivering” strongly. INDIGNANT--On your own showing, you were not under control. That you could not hoist the necessary N. U. C. lights on approaching a traffic-lane because your electrics had short-circuited is a misfortune which might befall any one. The A. B. C., being responsible for the planet's traffic, cannot, however, make allowance for this kind of misfortune. A reference to the Code will show that you were fined on the lower scale. PLANISTON--(1) The Five Thousand Kilometre (overland) was won last year by L. V. Rautsch; R. M. Rautsch, his brother, in the same week pulling off the Ten Thousand (oversea). R. M.'s average worked out at a fraction over 500 kilometres per hour, thus constituting a record. (2) Theoretically, there is no limit to the lift of a dirigible. For commercial and practical purposes 15,000 tons is accepted as the most manageable. PATERFAMILIAS--None whatever. He is liable for direct damage both to your chimneys and any collateral damage caused by fall of bricks into garden, etc., etc. Bodily inconvenience and mental anguish may be included, but the average courts are not, as a rule, swayed by sentiment. If you can prove that his grapnel removed any portion of your roof, you had better rest your case on decoverture of domicile (see Parkins v. Duboulay). We sympathize with your position, but the night of the 14th was stormy and confused, and--you may have to anchor on a stranger's chimney yourself some night. Verbum sap! ALDEBARAN--(1) war, as a paying concern, ceased in 1987. (2) The Convention of London expressly reserves to every nation the right of waging war so long as it does not interfere with the traffic and all that implies. (3) The A. B. C. was constituted in 1949. L. M. P.--(1) Keep her full head-on at half power, taking advantage of the lulls to speed up and creep into it. She will strain much less this way than in quartering across a gale. (2) Nothing is to be gained by reversing into a following gale, and there is always risk of a turnover. (3) The formulae for stun'sle brakes are uniformly unreliable, and will continue to be so as long as air is compressible. PEGAMOID--(1) Personally we prefer glass or flux compounds to any other material for winter work nose-caps as being absolutely non-hygroscopic. (2) We cannot recommend any particular make.