An English physician opposes compulsory vaccination on the ground that it prevents further discovery, and compels medical science to halt at just that point, because it forbids experiment upon methods of prevention that may prove to be better. He says: "It stereotypes a particular stage of scientific knowledge, and bars further progress. If I remind you of the great improvement thought to have been made by the introduction of inoculation by Lady Mary Wortley Montagu at the end of the last century, and ask you to suppose that Parliament might then have passed an act to compel every one to be inoculated, you will, I think, see what is meant. This method was tried for some years with great _éclat_, but afterward it was found to spread the smallpox so much that an act of Parliament was passed to forbid its use. Vaccination, introduced by Dr. Jenner, has followed, and this was another step in advance. I was the first child in my father's family vaccinated seventy-one years ago, several elder brothers and sisters having been inoculated. Both methods answered in our cases. But for many years I have been satisfied that other diseases besides the modified small-pox (called cow-pox) are now introduced by the old vaccine, and have steadily refused to use it, seeking rather, at increased trouble and expense, new vaccine. And the question which comes forcibly to the front is this: May not some other preservative be discovered which shall be a further improvement? This question cannot be answered so long as vaccination is compelled by law. There are no persons upon whom experiments can be tried." So far as it goes, this is valid ground for criticising vaccination laws. But the proof that small-pox is more disastrous to the human race than the evils that vaccination brings with it is so strong that there is little likelihood society will subject itself to the attacks of the greater enemy in order to avoid the lesser. The evils of the old system of using vaccine taken from human beings for new inoculations are now no longer inevitable. Fresh vaccine direct from the calf, and called "Bovine," can be had everywhere. A large establishment for obtaining it is situated near New York. CURRENT LITERATURE.