During his vacations, while yet a medical student, Dr. Gaynor travelled extensively through the Northern, Western, and Middle states, spending some time in the Oil regions of Pennsylvania, and at the watering places on the Atlantic coast. In politics he is a Liberal-Conservative, with no love, however, for toryism as it exists in the mother country. The descendant of a family that fought and bled for human liberty, he is naturally a liberal in sentiment and aspiration. It is his belief, however, that so far as principles are concerned, there is no essential difference between the Conservative party led by Sir John Macdonald and the Liberal party led by Edward Blake. It is tweedle-dum and tweedle-dee; and in the end the people always rule. Such being his opinion of the two great political parties into which the Canadian people are divided, Dr. Gaynor has pronounced views as to the position which his Irish Catholic co-religionists should take in dominion politics. They should, he believes, adopt Parnell’s famous motto, _Support the party which does the most for you_. They would thus as a body be bound to neither political party, and would gravitate from one to the other consistently with the fair or unfair, just or unjust, treatment they might receive from either party. Outside his native province Dr. Gaynor is best known as a writer on _materia medica_. He has made a specialty of the study of new drugs; and his articles in the “Investigator”—a medical monthly of Buffalo—on this and kindred subjects, have attracted unusual attention from the medical profession in America. He also wrote and published in the same journal a series of articles in explanation and defence of the Catholic doctrine on craniotomy. In those articles he triumphantly refuted all the objections brought forward by his adversaries, and abundantly proved, in defence of the Catholic position, that the rational soul animates the human fœtus from the very first moment of conception, and that consequently it is as great a violation of divine law to destroy the living embryo as it would be to murder the new-born child. Dr. Gaynor’s views of medical practice are wide and comprehensive. His motto as regards remedial agents is: “Seek the best where’er ’tis found, On Christian earth or pagan ground.”