806 SEC. 15. GEOGRAPHY. 



3212, Portfolio, containing Maps in Copper-plate Print, 



3213, Portfolio, containing Maps in Lithographic Print. 



Ban Deputation, Hamburg. 



3213b. Portfolio, containing reductions- of the survey sheets 

 to scale of 1 : 4000, and trigonometrical chart, scale, 1 : 50,000 

 lithographed. Ban Deputation, Hamburg. 



3213c. Portfolio, containing reductions of the survey sheets 

 in scales of 1 : 1000 ; 1 : 4000, and 1 : 20,000 on copper plates. 



Bau Deputation, Hamburg. 



3215. Portfolio, containing Maps and Drawings. 



Bau Deputation, Hamburg. 



3216. Plan, 1 : 4000. Sect. IV. galvanoplastic relief plate. 



Bau Deputation, Hamburg. 



3128. Plan, 1 : 20,000 ; in frame under glass. 



Bau Deputation, Hamburg. 



3128a. Hamburg and its Environs. Scale, 1:20,000, 

 engraved by H. Fetters. Bau Deputation, Hamburg* 



3129. Plan, 1 : 4000; in frame under glass. 



Bau Deputation, Hamburg. 



3129a. Plan of Hamburg and its Environs. Official 

 edition. According to the land survey, &c., engraved by S. Sie- 

 bert. Scale, 1 : 4000. Bau Deputation, Hamburg. 



3216a. Galvanoplastic Belief Plate of Section IV. of the 

 before-mentioned copper plate print. Bau Deputation, Hamburg. 



3217. Relief Maps of Bergedorf . 



Bau Deputation, Hamburg. 



3217a. Two Relief Maps, one of the town of Bergedorf and 

 its environs, produced from the lithographed sheets. Longitudinal 

 scale= scale of height=l : 4000, the other parts of the area of 

 Bergedorf, produced from the transfer-print sheets drawn for that 

 purpose on cartoon paper. Longitudinal scale = scale of height = 

 1 : 1000. Bau Deputation, Hamburg. 



. As a basis for the survey of Hamburg, the geodetic labours of Councillor 

 Schumacher, Astronomer, are made use of, and in particular the base mea- 

 sured by him in. tbe neighbourhood of Hamburg, in Holstein, in the years 

 1820 and 1821. At the suggestion of Engineer Lindley, the technical ad- 

 viser of the public buildings deputation until 1860, a new survey and the 

 construction of a new map on the scale of 1:250 was resolved upon, in the 

 year 1845, chiefly for technical purposes, and the necessary triangulation for 

 that object was executed by Dr. A. C. Petersen, under the direction of 

 Schumacher. 



