Every one has read the monograph, I believe that is the right word, of my dear friend, Professor Higgs-Ptolemy Higgs to give him his full name-descriptive of the tableland of Mur in North Central Africa, of the ancient underground city in the mountains which surrounded it, and of the strange tribe of Abyssinian Jews, or rather their mixed descendants, by whom it is, or was, inhabited. I say every one advisedly, for although the public which studies such works is usually select, that which will take an interest in them, if the character of a learned and pugnacious personage is concerned, is very wide indeed. Not to mince matters, I may as well explain what I mean at once.Professor Higgs's rivals and enemies, of whom either the brilliancy of his achievements or his somewhat abrupt and pointed methods of controversy seem to have made him a great many, have risen up, or rather seated themselves, and written him down-well, an individual who strains the truth. Indeed, only this morning one of these inquired, in a letter to the press, alluding to some adventurous traveller who, I am told, lectured to the British Association several years ago, whether Professor Higgs did not, in fact, ride across the desert to Mur, not upon a camel, as he alleged, but upon a land tortoise of extraordinary size.