Mr. Justice Pitney
delivered the opinion of the court.
Hornby, the respondent, recovered a judgment in the United States District Court against Lynch, as Collector of Internal Revenue, for the return of $171, assessed as an additional income tax under.the Act of October 3, 1913, c. 16, 38 Stat. 114, 166, and paid under protest. The Circuit Court of Appeals affirmed the judgment, 236 Fed. Rep. 661, and the case comes here on certiorari. It was submitted at the same time with Lynch v. Turrish, ante, 221; Southern Pacific Co. v. Lowe, ante, 330; and Peabody v. Eisner, post, 347, arising under the same act, and this day decided.
The facts, in brief, are as follows: Hornby, from 1906 to 1915, was the owner of 434 (out of 10,000) shares of the capital stock of the Cloquet Lumber Company, an Iowa corporation, which for more than a quarter of a century had been engaged in purchasing timber lands, manufacturing the timber into lumber and selling it. . Its shares had a par value of $100 each, making the entire capital stock $1,000,000. On and prior to March 1, 1913, by the increase of the value of its timber lands and through its business operations, the total property of the company had come to be worth $4,000,000, and Hornby’s, stock, the par yalue of which was $43,400, had become