General Development of the D.H.I. during 1956 
- Seite 77 - 
The present German list of Radio Signals (H.E.) in loose-leaf form was 
in so brisk a demand that all four volumes had to be 1 reprinted. Those who hold 
older editions are not affected by this if they have carefully kept the work 
up to date by working in the amendment sheets, which regularly contain the supp 
lements. By the "Seitenverzeichnis" - index 'of pages -, having appeared for the 
first time, the user is offered a simple possibility of control. 
Relations to practical shipping were further deepened by correspondence 
and personal contact. Some members of the staff were offered passages to gather 
information. Special thanks are due to the ship's masters, officers, shipping 
companies and organizations as well as to the German representations abroad and 
authorities, all of them having appreciably furthered our work by numerous re 
ports, information and suggestions given and by embarkations. 
In 1956 the renewal of the Chart ffork made further progress. The number of 
charts brought up to date could be increased to 797. Except for a few coast 
charts, which are still being revised and which will appear shortly, all charts 
covering the Gulf of Mexico, the Caribbean Sea and the West-Indies have now also 
been published as new edition. Of the charts covering the east coast of the 
United States of America to he re-issued at the suggestion of the Seeverkehrs 
heirat - Ausschuß für die Angelegenheiten des DHI - the coast charts have been 
worked up so far that half of them will appear before long. 
-In order to save time and costs at the publication and keeping up to date 
of charts, especially of those which are subject to permanent strong changes, 
an agreement was reached between the US Hydrographic Office Washington and the 
Deutsches Hydrographisches Institut with the object to exchange "second origi 
nals" of certain charts for reprinting purposes. After having converted the 
fathom/foot data into metres and after having adapted the originals to the list 
of symbols and abbreviations used on charts issued by the DHI, 11 charts of the 
most important ports of the USA Gulf, coast could be published in the year under 
review as new charts. 
The increased demands to the technical workshop could partly be met by 
putting a new one-colour offset printing press and a "linotype" composing ma 
chine into operation. The turnover of charts has surpassed for the first time 
after World War II the 100 000 limit. 
The surveying work of the survey craft in coastal waters extended to the 
following areas: sea area between Westerems and Hubertgat; sea area off the 
East-Erisian Islands Baltrum and Langeoog (Ackumer Ee); Außen- und Innenjade; 
Ealsches Tief including Ueu-Eahrwasser and Groß-Putengat; Border- and Süder- 
p'iep; Außeneider; Horder-Hever from Pellworm harbour up to the strand; northern 
part of the Schmal-Tief including Rüter-Gat and Land-Tief; iforder-Aue with Am- 
rum-Tief and outer part of Süder-Aue; eastern part of the Hörnum-Tief; Stein 
grund; waters to the west and south of Helgoland and of the Düne; outer sea 
area off the East-Erisian Islands Juist up to Wangerooge and southern part of