Real estate agents, whose agency is restricted to the collection of rents of property or the soliciting and submission of offers to purchase, are not within the meaning of an act of Congress requiring the owner, agent or tenant of real estate within the district to remove snow and ice from paving sidewalks in front of their property, and are therefore not liable to the penalties of that statute. Holtzman v. U. S., 14 App. (D. C.) 454.