Indianapolis, Aug. 23. - The supreme lodge, Knights of Pythias, began its biennial session at the hall of the house of representatives at the state capítol. The suprema officers were esccrted from headquarters at the Denison to the state house by the supreme representatives and a special guard of honor from the uniform rank. The rooms were beautifully decorated with the Pythian colors and embiems of the order and the galleries, which were thrown open at an early hour were soon crowded with the wealth and fashion of the city. Caleb S. Denny, ex-mayor of Indianapolis, who is chairman of the citizens' executive committee, called the meeting to order. Mayor Taggart in a brief address welcomed the supreme lodge and hoped that its session would be of great value to the order throughout the world. On behalf of the state of Indiana Governor James A. Mount welcomed the lodge, and on behalf of the grand lodge of Indiana Grand Chancellor Union B. Hunt made an address of welcome. Supreme Chancellor Colgrove replied for the supreme lodge in a speech of about ten minutes. One or two other prominent members of the order made remarks, and at 11 o'clock the supreme lodge settled down to business after the galleries had been cleared. There are about 45,000 strangers in the city, of whom 15,000 are in un:.form. More than 8,000 members of subordínate lodges are in attendance. The great Pythian parade in the afternoon was witnessed by 75,000 people. About 13,000 members of the uniform rank and 6 000 members of the subordínate lodges participated. The parade was revievved by the supreme and grand officers and the officers of the state and city. It was the largest secret society parade ever held in this city. There is a strong fight between Louisville, Ky., and Detroit, Mich., for the next session of the supreme lodge and both delegations from both places have opened headquarters and are making things exceedingly liveiy. The annual reports of the supreme officers were read in the afternoon, after which the lodge adjourned to witness the parade.