What Tree is That?, a 72-page pocket guide to distinguishing trees is available from the National Arbor Day Foundation. Send name, address and $3 for each book to 100 Arbor Ave., Nebraska City, Neb., 68410 or online at www.arborday.org.
Brooker educational center needs help
Looking to help out? Friendly, outgoing volunteers are needed at the Brooker Creek Preserve Environmental Education Center as exhibit hall docents and summer camp assistants. Call 453-6800.