"That," said my friend, in reply. to a westion of mine, "is a very large and very rich nugget of gold ore. It was taken many years ago from a mine in Australia,"
How much is it worth 2" I asked, He looked at me with a shrewd smile and replied: "It is worth just nothing at all."
Tthought that a queer thing for him to ay, but asked no more questi in London and this time I missed the big Two years later I again visited his house nugget from the shelf where I had first seen it. "But I asked no questions, Perhaps, recalling the incident of two years before, my friend said: "I have something to show you," and opening a closet, he produced a magnificent gold vase, remarking: "That nugget of gold. ore has taken this form.—Ioxclusiveof the labour involved in the transform.
the gold alone is now walth £100." mnilitudes there are between sentially unlike Here is ove which he instructive to follow up It is suggested by the following sentence feom a woman's letter:—" In spite of all the nourish. ing food T took, nothing seemed to give me strength."
Now, why was that? Perhaps the history of the previous three years of her life may help to account for it, January, 1890, she had an attack of influenza which, ale says, left her low, weak, and languid. "So far as we are able' to ascertain, influenza is caused by acertain poison in the blood developed during peculiar conditions of the atmosphere. Its early symptoms are those of a fever; they are always sudden and often alarming. "Yet, as in nearly all cases it ends in recovery ina week or two, it does no* explain the mystery of Mrs. Westall's continued weakness and prostration.
She tells us that her appetite was poor, and thas eating was immediately followed by it pain in the chest, back, and sides.
jop'ng to overcome this state of things she took much nourishing food. That an increase of strength should result from the eat-
able. How else can one ever gain strength ing of plenty of good food would seem reason. Yet, strange to say, no such result followed. On the contrary. the pains became worse, 80 that—to use her own wot he was completely racked with pain" all over her, and 80 weal: she could scarcely put one foot before the other. Besides this the condition of the stomach was far from encouraging. That organ is the source of ull power in the human body, and should feel warm, comfortable and quiet. In this lady's case ib was fall of uneasiness and pain, "She speake of a craving, gnawing, sinking sensation in it which was not relieved either by foud or by any medical treatment. Certainly, something quite different from a former attack of influenza went to the making of that; we must look deeper to find the real trouble.
Chemists often determine the character of a poison by observing the colour' it creates when applied to litmus paper; and—in addi-
Text read from the printed page and cleaned; old type leaves the occasional error.