1979 Index IEEE Transactions on Sonics and UhSonics Vol. SU-26

that appeared in this eriodical dunng 1979, and items from prior years This index covers all items-papers, correspondence, reviews, etc.that were commentelupon or corrected in 1979. The index is divided into an Author Index and a Subject Index, both arranged al habetically. The Author Index contains the primary entry for eac! item; thls entry is listed under the name of the first author and includes coauthor names, title, location of the item, and notice of corrections and comments if any. Cross-references are given from each coauthor name to the name of the correspondin first author. The location of the item is specified by the journal name (a%breviated), year, month, inclusive pa es, and microfiche code. [The microfiche code, given in arentheses fo%owing the inclusive pages, consists of four characters to ge interpreted as follows: the first character identifies the microfiche number within the set of fiches for the issue; the second character identifies the row in which the first frame of the particular item is located; and the last two characters designate the position of that frame within the row.] sisting of a subject heading, modifying phrase(s), first author’s name, and The Subject Index contains several entries for each item, each conlocatlon of the item. For information on coauthors, title, comments and corrections if an etc., it is necessary to refer to the Author Index. Some generic subject {ladings are used in this index in addition to the usual technical headings, e.g., Books, (books reviewed in this periodical), Bibliographies (both papers that are bibliographies and any other papers which contain more than 50 references), Conferences (technical meetmgs a substantial number of whose abstracts or papers have appeared in this periodical), and Special Issues (issues of th~s periodical devoted primarily to a specific sub’ect). The Subject Index includes subject cross-references as required by the subject matter.