The Martians had what appears to have been an auditory organ, a single round drum at the back of the head-body, and eyes with a visual range not very different from ours except that, according to Philips, blue and violet were as black to them. It is commonly supposed that they communicated by sounds and tentacular gesticulations; this is asserted, for instance, in the able but hastily compiled pamphlet (written evidently by someone not an eye-witness of Martian actions) to which I have already alluded, and which, so far, has been the chief source of information concerning them. Now no surviving human being saw so much of the Martians in action as I did. I take no credit to myself for an accident, but the fact is so. And I assert that I watched them closely time after time, and that I have seen four, five, and (once) six of them sluggishly performing the most elaborately complicated operations together without either sound or gesture. Their peculiar hooting invariably preceded feeding; it had no modulation, and was, I believe, in no sense a signal, but merely the expiration of air preparatory to the suctional operation. I have a certain claim to at least an elementary knowledge of psychology, and in this matter I am convinced--as firmly as I am convinced of anything--that the Martians interchanged thoughts without any physical intermediation. And I have been convinced of this in spite of strong preconceptions. Before the Martian invasion, as an occasional reader here or there may remember, I had written with some little vehemence against the telepathic theory.