The 36-Hour Day, by Nancy L. Mace and Peter V. Rabins, nurse and psychiatrist, is acclaimed by specialists in the field as the single most useful publication on Alzheimer's disease.

The book deals with virtually every problem the family of an impaired person will face, from "When the Sick Person Insults the Sitter" to recent research. Excerpts:

* "Grief: As the person's illness progresses and the person changes, you may experience the loss of a companion and a relationship that was important to you. You may grieve for the 'way she used to be' . . . We usually think of grief as an emotional experience that follows a death. However grief actually is an emotional response to loss and so is a normal experience for people who love a person with a chronic illness . . ."

* "Remove things in the home that cause problems. If a person tries to use the iron and leaves it on, causing a fire hazard, put it away where he cannot find it. Whenever possible take the easiest path to safety without conflict. Does the impaired person have access to power tools, lawn mower, knives, hairdryer, stove, sewing machine or car keys when he can no longer safely use them? You must put these in a locked closet."

The book is $6.95. It may be obtained directly from the Business Department, Johns Hopkins University Press, Baltimore 21218 or from chapters of Alzheimer Associations.