ALL THE POWERFUL INVISIBLE THINGS A Sportswoman's Notebook. By Gretchen Legler. Seal Press, cloth, $20.95; paper, $12.95.
Gretchen Legler's essays are as much a study of the natural world as they are an analysis of the author's mind. Ms. Legler, who has spent the better part of her life hunting and fishing, considers herself an outsider in the male world of the outdoors. However, "All the Powerful Invisible Things" is more than an indictment of the various injustices she has endured; it also chronicles her efforts to understand her remote father and to come to grips with the suicide of her sister. Ms. Legler, who teaches creative writing at the University of Alaska, has written a book that is part nature guide, part family history and part feminist tract, and she captures the reader's imagination with the same skill and precision with which she catches spring walleyes on the Rainey River. Carolyn T. Hughes

