"He was much surprised to see that I looked no older than when he had met me before. He was greatly impressed by this, and talked a good deal about it. He told me he considered himself under the greatest obligations to me for what I had done for him, and as he spoke I could see that a hope was growing within him that perhaps I might do something more. He presently spoke out boldly, and said to me that as my knowledge of medicine had enabled me to keep myself from growing old, perhaps I could do the same thing for him. Few men had greater need of protecting themselves against the advance of old age. His work was not done, and years of bodily strength were necessary to enable him to finish it.
"But I could do nothing for Joshua in this respect. I assured him that my apparent exemption from the effects of passing years was perfectly natural, and was not due to drugs or medicaments.
"Joshua lived many years after that day, and did a good deal of excellent military work; but his life was not long enough to satisfy him. He fell sick, was obliged to
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