ably to the presence of an unknown element with a brilliant group of three lines in the green, and it is possible that it combines with argon to form a compound which acts at once with deadly effect upon some constituent in the blood. But such unproven speculations will scarcely be of interest to the general reader, to whom this story is addressed. None of the brown scum that drifted down the Thames after the destruction of Shepperton was examined at the time, and now none is forthcoming.
The results of an anatomical examination of the Martians, so far as the prowling dogs had left such an examination possible, I have already given. But everyone is familiar with the magnificent and almost complete specimen in spirits at the Natural History Museum, and the countless drawings that have been made from it; and beyond that the interest of their physiology and structure is purely scientific.
A question of graver and universal interest is the possibility of another attack from the Martians. I do not think that nearly enough attention is being given to this aspect of the matter. At present the planet Mars is in conjunction, but with every return to opposition I, for one, anticipate a renewal of their adventure. In any case, we should be prepared. It seems to me that it should be possible to define the position of the gun from which the shots are discharged, to keep a sustained watch upon this part of the planet, and to anticipate the arrival of the next attack.
In that case the cylinder might be destroyed with dynamite or artillery before it was sufficiently cool
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