September 1976	VOLUME 1	NUMBER 1	IJOEDY	(ISSN 0364-9059)

NONTECHNICAL CONTENT
		Front cover and table of contents
		Back cover
INTRODUCTION
Edward W. Early		A bit of history		1
EDITORIAL
Donald M. Bolle		Editorial		2
		Associate editors		4
PAPERS
Robert C. Spindel, Robert P. Porter, William M. Marquet, and James L. Durham		A high-resolution pulse-Doppler underwater acoustic navigation system		6
John J. Anton and Anthony J. Rockmore		A unified approach to array-factor synthesis for line arrays with nonuniformly positioned elements		14
F. Früngel and C. Koch		Practical experience with the Variosens equipment in measuring chlorophyll concentrations and fluorescent tracer substances, like rhodamine, fluorescein, and some new substances		21
Harold A. Sabbagh and Thomas F. Krile		N-port analysis of a projector consisting of a coaxial array of ferroelectric shells		32
COMMUNICATIONS
F. Früngel and C. Koch		Fluorometric in situ measurements of water currents and mingling of waters in cases of heavy turbidity as in coastal shoal areas		42