United States of America I'bi 



skilled shop workman available; boats obtained by 

 rental as needed. 

 SIZE OF staff: One at professional level. 

 important species available for laboratory 



studies: 

 Chrysomonadales: AidUonionas, Syi?//rd, Dinohryon, 



Hyalobryon, Kephyrioii, Pseudokephyrio)!, Steno- 



kalyx and Chrysococcus. 

 major current research projects and scientific 



leaders: 

 Periodicity, ecology and systematics of the Chrysomon- 

 adales of some Alaska lakes and ponds (Douglas K. 



Milliard) 

 Electron microscope observation on MaUoinoiiiis and 



Synura in Alaskan ponds (Douglas K. Billiard) 

 Observations on the algae of an oxidation pond 



(Douglas K. Milliard)" 

 Taxonomic significance of eggs and coracidia of 



diphyllobothriid cestodes (Douglas K. Milliard) 

 Phycological studies of Cape Thompson and environs 



(Douglas K. Milliard) 



ARCTIC HEALTH RESEARCH CENTER, ANCHORAGE 



Conimnn'icahle Disease Center, Puerto Rico 

 Field Station 



postal address: P. O. Box 52, San Juan, Puerto Rico. 



EXECUTIVE OFFICER: Dr. F. F. Ferguson Chief, Puerto 

 Rico Field Station. 



year FOUNDED: 1952. 



SCOPE OF ACTIVITIES: Restricted research on the control 

 of schistosomiasis. 



SEASON OF OPERATION: All year. 



physical ENVIRONMENT ACCESSIBLE: Brackish, shallow 

 bays, eutrophic and oligotrophic lakes, rivers and 

 streams, and irrigation systems. 



PROVISIONS FOR VISITING SCIENTISTS: Available. 



MAJOR RESEARCH FACILITIES: Small library; large out- 

 door ponds and tanks, small aquarium tanks, irrigation 

 systems; research and identified reference collections 

 of various planorbid snails; machine and wood shop. 



electrical and electronic shop, skilled shop workman 

 available. 

 SIZE OF STAFF: Four at professional level; 5 techni- 

 cians. 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Investigation on the biology and control of sdiisto- 

 momiasis (F. F. Ferguson, W. B. Rowan, H. 

 Negron, and W. R. Jobin) 



National Water Quality Netivork Laboratory 



POSTAL ADDRESS: 1014 Broadway, Cincinnati 2, Ohio, 

 USA. 



EXECUTIVE OFFICER: Leo Weaver, Chief, Water Qual- 

 ity Section. 



SPONSORING agency: Basic Data Branch, Division of 

 Water Supply and Pollution Control. 



YEAR OF FOUNDING: 1957. 



SCOPE OF ACTIVITIES: Collect, interpret, and disseminate 

 basic data on water quality of the Nation's waters as 

 related to water supply and pollution control. Samples 

 for analysis are collected from 125 locations located 

 throughout the Nation on major streams. 



research: Restricted. 



SEASON OF OPERATION: All year. 



PHYSICAL ENVIRONMENT ACCESSIBLE: The 125 existing 



stations are sampled with cooperation by local, state, 

 and federal agencies. Analysis of unstable characteris- 

 tics are performed locally and other analyses performed 

 in the laboratories of the National Water Quality Net- 

 work at Cincinnati, Ohio. Laboratories include facil- 

 ities for analysis of: inorganic chemicals, trace ele- 

 ments, organic extracts from carbon adsorption units, 

 bacteria, radioactivity, plankton, benthos, and fish 

 populations. Equipment development for sampling 

 and electronic detection of water quality is also carried 

 on. Annual compilations of data published as Public 

 Mealth Service Publication No. 663, 3 volumes and 2 

 supplements. 



PROVISION FOR VISITING SCIENTISTS: Visits arranged 

 for laboratory tours or for instruction on methods. 



MAJOR RESEARCH AND TEACHING FACILITIES; Labora- 

 tories and library available for research; short courses 

 conducted cooperatively with the Robert A. Taft Sani- 

 tary Engineering Center. 



SIZE OF STAFF: 54 employees. 



IMPORTANT SPECIES AVAILABLE FOR LABORATORY 



STUDIES: Permanent diatom slides, semi-monthly 

 preserved plankton samples from nationwide collec- 

 tions, bottom fauna, and fish collections. 



MAJOR CURRENT RESEARCH PROJECTS AND SCIENTIFIC 

 LEADERS: 



Projects: 



Plankton laboratory 

 Benthos field and laboratory 

 Fish census field studies 

 Inorganic water analyses 



