Analysis of information sources in references of the Wikipedia article "指定打擊" in Chinese language version.
The following excerpt is from the article "Why the Pitcher Ought to Bat", which first appeared in the Philadelphia North American and was reprinted in the Feb. 3, 1906, edition of Sporting Life: The suggestion, often made, that the pitcher be denied a chance to bat, and a substitute player sent up to hit every time, has been brought to life again, and will come up for consideration when the American and National League Committees on rules get together. This time Connie Mack is credited with having made the suggestion.
The following excerpt is from the article "Why the Pitcher Ought to Bat", which first appeared in the Philadelphia North American and was reprinted in the Feb. 3, 1906, edition of Sporting Life: The suggestion, often made, that the pitcher be denied a chance to bat, and a substitute player sent up to hit every time, has been brought to life again, and will come up for consideration when the American and National League Committees on rules get together. This time Connie Mack is credited with having made the suggestion.