“Among the ridiculed claims of alchemy is that of the perpetual lamps. If we tell the reader that we have seen such, we may be asked – in case that the sincerity of our personal belief is not questioned – how we can tell that the lamps we have observed are perpetual, as the period of our observation was but limited?
Simply that, as we know the ingredients employed, and the manner of their construction, and the natural law applicable to the case, we are confident that our statement can be corroborated upon investigation in the proper quarter. What that quarter is, and from whom that knowledge can be learned, our critics must discover, by taking the pains we did.
Meanwhile, however, we will quote a few of the 173 authorities who have written upon the subject. None of these, as we recollect, have asserted that these sepulchral lamps would burn perpetually, but only for an indefinite number of years, and instances are recorded of their continuing alight for many centuries.
It will not be denied that, if there is a natural law by which a lamp can be made without replenishment to burn ten years, there is no reason why the same law could not cause the combustion to continue one hundred or one thousand years.”
H. P. Blavatsky