113 BOOK REVIEWS VOL. 81, NO. 1 ages are acetazolamide, 500 mg orally, and hydrochlorothiazide, 50 mg orally. G. B. BIETTI, M.D. M. VIRNO, M.D. J. PECORI-GIRALDI, P H . D . Rome, Italy N. PELLEGRINO, P H . D . Pomezia, Italy KERATOMYCOSIS D U E TO AN Alternaria 4. Gilman, J. C. : A Manual of Soil Fungi. Ames, Iowa, Iowa State University Press, 1971, p. 346. 5. Barnett, H. L., and Hunter, B. B. : Illustrated Genera of Imperfect Fungi. Minneapolis, Burgess Publishing Company, 1972, p. 128. 6. Hazen, E. L., Gordon, M. A., and Reed, F. C. : Laboratory Identification of Pathogenic Fungi Simplified. Springfield, 111., Charles C Thomas, 1970, p. 188. 7. Simmons, E. C. : Typification of Alternaria, Stemphylium, and Ulocladium. Mycologia. 59:67, 1967. SPECIES Editor: I wish to disagree with a point made by P. Azar, J. Aquavella, and R. Smith in their paper "Keratomycosis due to an Alternaria species" (Am. J. Ophthalmol. 79:881, 1975). The authors state that "the presence of hyphae and budding yeast forms in the keratoplasty specimen gave further con­ firmation to the diagnosis." This statement implies that the genus Alternaria possesses the property of dimorphism—the ability to grow either as yeast forms or mycelium forms depending on the environment. Alternia does not possess this property.1"6 In laboratory culture, the conidium (a porospore) originates as an outgrowth of proto­ plasm through a discrete pore in the apical wall of a sporogenous cell.7 This results in conidia formed in chains and is termed acropetal budding; not to be confused with budding of one-celled fungi (yeast forms). In histopathologic examination ( P A S and Gridley stains) of tissue infected with Alternaria one would find septated mycelial forms but not budding yeast forms. J O H N H. BRINSER, B.A. Tampa, Florida REFERENCES 1. Alexopoclos, C. J. : Introductory Mycology. New York, Harper and Row, 1962, p. 415. 2. Ellis, M. B.: Dematiaceous Hyphomycetes. England, Commonwealth Mycological Institute, 1971, p. 464. 3. Beneke, E. S.: Medical Mycology Laboratory Manual. Minneapolis, Burgess Publishing Company, 1968, p. 16. BOOK R E V I E W S ADVANCES IN OPHTHALMOLOGY, vol. 29. Edited by M. J. Roper-Hall, H. Sautter, and E. B. Streiff. S. Karger A. G., Basel, Switzerland, 1975. Clothbound, 216 pages, table of contents, index, 113 black and white figures. $47.50 This book contains two reviews and two original contributions. The first review deals with the effects of prostaglandins on ocular tissues. This is an excellent summary and Professor Perkins stresses especially the effect of the prostaglandins on intraocular pressure. He emphasizes that the release of prostaglandin after trauma is the cause for the rising intraocular pressure in these eyes. This may not only occur in the affected eye, but may also have a consensual effect. The role of prostaglandins in ocular inflamma­ tions is certainly an important one. The second review gives an up-to-date re­ port on vitreous surgery. It is by Dr. Machemer and associates from the Univer­ sity of Miami. Essentially the same article appeared previously (Ophthalmic Surgery 5:13, 1974). One original paper by Dominguez and associates of Madrid is on electric tonometry in the newborn. This was done on infant eyes without general anesthesia, avoiding any kind of drugs. It was performed using the MacKay-Marg tonometer. Six hundred four eyes were measured and the mean intraocular pressure was 13.03 mm Hg. Quick and continuous variations of the