Normal and Neoplastic Hematopoiesis

specifically. The book is supported by over 200 references and half again as many personal communications. The high-quality scanning electron micrographs of pollen grains are especially appealing. Willow, mimosa, and dandelion pollen have an architecture as intricate and beautiful as the plant superstructure which supports them. The spiny spherical pollen grains of ambrosia (ragweed) make them visibly as irritating as they are when they contact the mucous membranes. Pollen is not exciting to read unless you are discovering the specific origin of your seasonal sneezing, tearing, conjunctivitis, asthma, and rhinorhea, and that by moving to southern California, you might be able to avoid the problem. The book is expensive, but well done and should serve as a lasting reference to plant biologists, allergists, and even ophthalmologists.