A WHITE MAN TURNING BLACK.

Tuapeka Times, Volume VI, Issue 273, 24 April 1873, Page 7

A WHITE MAN TURNING BLACK.

A San Francisco paper tells the following : — A gentleman about 25 years of age, ruddy complexion and curly red hair, who had an intricable and painful ulcer on the left arm, resisting all previous modes of treatment, yielded to the request of trying the effect of transplanting a piece of skin to the ulcer from another person. The ulcer was prepared in the usual manner by his physician, and a bit of skin about an inch square was taken from the arm of a fine healthy negro man and immediately spread over the ugly ulcer, and th^n carefully dressed and bandaged. The skin transplantation had the desired effect. Healthy granulation sprang up, and the unsightly ulcer soon healed. A few months afterwards he went to the physician, and told him that ever since the sore healed the black skin commenced to spread, and it was Jnoreasini*. About onethird of liis arm was completely negroed. The doctor himself is alarmed. The hi^h probability is that the whole skin of this white man will become negro. Tin's is a now thing under the sun. It would be rather difficult to explain the physiological process which takes place to bring about such a change as this. The problem is, how can the coloring ?natter of th*» sh'n be so radically changed ? and how i« this piw racnt change propagated ? It is certain that the law of capiliary attraction places no insignificant part in the spreading process. Grafting pears on an apple tree has communicated to the apple .a pear taste.

The Kuranui company Thames are about to try an experiment which, although by no mentis new, is likely to prove beneficial in saving gold. This is the substitution of eloetro-plates on the tables instead of the ordinary copper-plates, and Mr. S. Wells has prepared a set which will be fixed to a battery. The great advantage to be derived from the use of these plates is perfect cleanliness. None of that deleterious scum which sometimes rises on copper-plates, when stuff thickly impregnated with base mineral is being crushed, can arise where the electro-plating is used, because nothing can touch the copper — there is always a silver surface. The process by which these sheets of copper have been electro-plated is of the description usually employed — a powerful galvanic battery and a quantity of silver held in solution in a bath. Mr. Wells has prepared the necessary means at considerable expense; but should the electro-plates be found more efficient in saving gold than tho ordinary copper-plates; the money will have been well expended, and we " Thames Anvertiser" trust Mr. Wells's efforts will meet with the reward they deserve.

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