The making and dealing in negotiable paper (except the drawing of checks or orders on partnership funds in payment of firm obligations) is held not to be in the ordinary scope of a non-trading firm. There is sometimes difficulty in determining what constitutes a trading or non-trading firm. There are decisions holding that partnerships carrying on the following trades or occupations were non-trading firms: The occupation of factors and brokers; printers and publishers; contractors; plumbers; farmers; the keepers of livery stables and taverns; the business of operating a mine; running a threshing machine; conducting a theater; carrying on the real estate, loan, and insurance business; running gas works; operating water-works, lumber mill, flouring mill; and the business of contracting and building.

6 Ravelsky vs. Brown, 92 Ala., 522;

25 Am. St. Rep., 83. 7 Hook vs. Stone, 134 Mo., 329;

Claffin Co. vs. Evans, 55 Ohi St, 183.

8 Edwards vs. Dillon, 147 III., 64; 37 Am. St. Rep., 199; Gibson vs. Warden, 14 Wall, 247; May-ratify; Swan vs. Stedman, 4 Mete, 548.