4 p.m.-6:30 p.m.: Lawrence Farmers Market, Vermont Street between 10th and 11th streets, 842-3883 or 838-4726.
4 p.m.-7 p.m.: Free depression screening, Unity Church, 416 Lincoln St.
5 p.m.-7 p.m.: "Homework Nights" free tutoring and homework assistance for 11- to 18-year-olds, Lawrence Public Library, 707 Vt., 843-3833, Ext. 121.
5 p.m.-8 p.m.: Friends of the Lawrence Public Library annual book sale, $3 bag night, Lawrence Public Library, 707 Vt.
5 p.m.-9 p.m.: Battle of the Bands for ages 11-18, Lawrence Public Library, 707 Vt., 843-3833, Ext. 121.
6:30 p.m.: Aviation Advisory Board meeting, Lawrence Memorial Airport, 2500 Airport Road, Pilots Lounge, 832-3400.
7 p.m.: Wakarusa Township board meeting, 300 W. 31st St.
7 p.m.-8:30 p.m.: Lawrence Public Schools College Night, Lawrence High School, 1901 La., 832-5050.
7:30 p.m.: Jayhawk Audubon Society meeting, "Wetlands Mitigation: The Good, the Bad, and the Ugly," presentation by Sharon Ashworth, Lawrence Senior Center, 745 Vt.
7:30 p.m.: NAACP meeting, St. Luke AME Church, Ninth and New York streets, first unit, 749-2374.
9:30 a.m.-10:30 a.m.: Lawrence-Douglas County Health Department immunization clinic, Eudora City Hall, 4 E. Seventh St. Hepatitis B vaccines available for 12- to 17-year-olds.
10:30 a.m.-11 a.m.: Storytime for 2-year-olds and an accompanying adult, Lawrence Public Library, 707 Vt., 843-3833, Ext. 117. Registration required.
10:30 a.m.-11 a.m.: Storytime for children 3 years and older, Lawrence Public Library, 707 Vt., 843-3833, Ext. 117.
1 p.m.-5 p.m.: "Stories by the Bell: Celebrate Winnie-the-Pooh's Birthday," stories every hour, Lawrence Public Library, 707 Vt., 843-3833, Ext. 117.
4 p.m.-6 p.m.: Open house for Lawrence Police Department new investigations and training center, 4820 W. 15th St.
7:30 a.m.: Lawrence Farmers Market, Vermont Street between 10th and 11th streets, 842-3883 or 838-4726.
8:30 a.m.-5:30 p.m.: Lawrence Kennel Club Dog Show, Douglas County Fairgrounds, 21st and Harper streets.
9 a.m.: Trail grand opening, Prairie Park Nature Center, 2730 Harper St., 832-7980.
9 a.m.-10 a.m.: Cohousing site tour, Delaware Street Commons, 1208 Del. Business meeting, 10 a.m.-noon.
Noon-4 p.m.: Lawrence Humane Society Inc. Adopt-A-Pet, Petco, 3115 Iowa, 843-6835.
7 p.m.-11 p.m.: Saturday Nite's Main Event youth lock-in for fourth- through eighth-graders, East Lawrence Center, 1245 E. 15th St., 832-7950.
Through Saturday: Lawrence Public Library celebrates "Teen Read Week" with coupons, treats and special programs, 707 Vt., 843-3833, Ext. 121.
2 p.m.-4 p.m.: Young Adult Advisory Board meeting, Lawrence Public Library, 707 Vt., 843-3833.
Through Oct. 31: Hepatitis B vaccines for 12- to 17-year-olds, Lawrence-Douglas County Health Department, 200 Maine, 843-0721.
9 a.m.: Douglas County Commission meeting, county courthouse, 1100 Mass.
5 p.m.-8 p.m.: Free infant-toddler community screenings, Lawrence Memorial Hospital, 325 Maine, conference room A, 843-3059. Appointments required.
7 p.m.: Lawrence school board, school district headquarters, 110 McDonald Drive.