_Plurals of Nouns ending in EAU, IEU, and OU._ beaux bureaux chapeaux chateaux flambeaux plateaux rondeaux jets d’eau portmanteaus purlieus adieux batteaux bijoux morceaux rouleaux tableaux A number of these nouns admits of two forms in the plural. HOW TO SECURE COPYRIGHTS. 1. A _printed_ copy of the title (besides the two copies to be deposited after publication) of the book, map, chart, dramatic or musical composition, engraving, cut, print, photograph, or a _description_ of the painting, drawing, chromo, statue, statuary, or model or design for a work of the fine arts, for which copyright is desired, must be sent by mail or otherwise, _prepaid_, addressed: _Librarian of Congress, Washington, D. C._ This must be done before publication of the book or other article. The _printed title_ required may be a copy of the title page of such publications as have title pages. In other cases, the title must be printed expressly for copyright entry, with name of claimant of copyright. The style of type is immaterial, and the print of a type-writer will be accepted. But a separate title is required for each entry, and _each_ title must be printed on paper as large as commercial note. The title of a _periodical_ must include the date and number. 2. A fee of 50 cents, for recording the title of each book or other article, must be enclosed with the title as above, and 50 cents in addition (or one dollar in all) for each certificate of copyright under seal of the Librarian of Congress, which will be transmitted by early mail. 3. Within ten days after publication of each book or other article, two complete copies of the best edition issued must be sent, to perfect the copyright, with the address: _Librarian of Congress, Washington, D. C._ The postage must be prepaid, or else the publications inclosed in parcels covered by printed Penalty Labels, furnished by the Librarian, in which case they will come FREE by mail, according to rulings of the Post Office Department. Without the deposit of copies above required the copyright is void, and a penalty of $25 is incurred. No copy is required to be deposited elsewhere.