BOOK REVIEW THE WATER ENCYCLOPEDIA, The Water Encyclopedia as a singu- public and private organizations. a compendium of useful information lar and basic reference on the sub- on water resources. Edited by ject for those in the field or just in- About the publisher David Keith Todd, professor of Civil terested in it. The Water Information Center is Engineering1, University of Cali- a small, well-established publisher fornia, Berkeley. specializing in basic books on the Water, one of our most precious About the editor subject of water. Long before pol- and abused resources, gets the full David Keith Todd is a Professor lution became a household word, the treatment in the new Water En- of Civil Engineering at the Univer- Center was disseminating valuable cyclopedia, recently published by sity of California, Berkeley, where information and data through its Water Information Center, Inc. The he is in charge of graduate educa- Water Newsletter, the oldest news- book marks the first time so much tion in water resources engineering. letter of its kind in the water field. hard-to-find and scattered informa- His education includes degrees from The Center's "Water Atlas of the tion is available in one volume. Purdue University, New York Uni- United States" was an award win- An entire chapter is devoted to versity, and the University of Cali- ner, receiving a certificate of special Water Quality and Pollution Con- fornia. He is a registered profession- merit from the Association of Print- trol, of prime concern today, with al engineer and a member of the ing Industries. The Atlas was also such sub-classifications as: Drinking American Society of Civil Engi- one of a small group of publications Water Quality Standards, Industrial neers, American Geophysical Union, chosen to be exhibited in the United Water Quality, Irrigation Water American Water Works Association, States Pavilion at the World's Fair Quality, Water Quality for Aquatic American Meteorological Society, in New York and is still the only Life, Recreational Water Quality, and American Association for the reference of its kind available. "The Water Treatment Processes, Water- Advancement of Science. As a Na- Water Encyclopedia," presented in borne Diseases, to name just a few. tional Science Foundation Fellow he this pamphlet, is yet another unique Other chapters indicate its broad has studied and conducted research publication from the Water In- coverage: Climate and Precipitation, on water resources in Europe. He is formation Center. Hydrology, Surface Water, Ground the author of more than 90 publica- The 7" x 10", 550-page, hard-cover Water, Water Use, Water Resources tions in the fields of hydrology and volume is available for $27.50 from Management, Agencies and Organi- water resources. In recent years, he Water Information Center, Inc., zations, Constants and Conversion has served as a consultant to the Dept. 3P, Water Research Building, Factors. United Nations, Federal and State Manhasset Isle, Port Washington, More than 200,000 facts qualify agencies, several cities and other L.I., N.Y. 11050.

AN ARMORED SCALE (Parlatoria crotonis) FLORIDA: Taken on croton at nursery in Chattahoo- chee, Gadsen County, May 7, 1971. This is a new county report record. TREE TURF INSECTS EASTERN SPRUCE GALL APHID WESTERN YELLOWSTRIPED ARMYWORM (Spodoptera praefica) (Adelges abietis) OREGON: (freshly emerged) appearing for first WEST VIRGINIA: Infestation fifty percent on 12 acre time in blacklight trap located near Macleary, Marion block of Norway spruce in Wetzel County, August 12. County. ELM LEAF (Pyrrhalta luteola) A NOCTUID NEVADA: Damage heavy to trees in Caliente, Lincoln (Agrotis ducens) County. Damage heavy in Fallon, Churchill County. NEW HAMPSHIRE: Moths 30 in blacklight trap at Damage light to medium at Topaz Lake, Douglas Newington, Rockingham County. County. KENTUCKY: Completely defoliated elm trees in Knott and parts of Jackson Counties. A LEAFHOPPER (Euscelis ohausi) CASEBEARER OREGON: Collected fourth and fifth instar nymphs on ( laricella) Scotch broom (Cytisus scoparius) on June 28, 1970, near OREGON: Very rapid and unexpected southward move- Corvallis, Benton County. This is a new North American ment in Umatilla County larch. Originally detected at record. Distribution Europe. Tollgate, June 1970, this species spread into Emigrant Park area between Pendleton and La Grande and into TWOLINED SPITTLEBUG Battle Mountain State Park, located 35 miles south of (Prosapia bicincta) Pendleton. SOUTH CAROLINA: Unusually heavy, spittle masses per square yard on lawns in 6 city-block-area of Myrtle DOUGLAS FIR TUSSOCK MOTH Beach, Horry County. (Hemerocampa pseudotsugata) CALIFORNIA: New infestation in estimated 3000 acre INSECTS OF ORNAMENTALS stand of mixed forest and private property in El Dorado RED-HUMPTED CATERPILLAR National Forest, El Dorado County. Mixed populations (Schizura concinnia) from light to heavy at Nevada Point, Georgetown area, VIRGINIA: Feeding on dogwood in Chesterfield County. and along Rubicon River eastward.