Preamble
"SEC. 34. Any person claiming an interest, whether named in the notice or not, may appear and file an answer on or before the return day, or within such further time as may be allowed by the court. The answer shall state all the objections to the application, and shall set forth the interest claimed by the party filing the same and apply for the remedy desired, and shall be signed and sworn to by him or by some person in his behalf."