1871 Abstract of Reports of Surveys and other Geographical Operations in India for 1869-70 s.pdf 1.19 MB
1872 Abstract of Reports of Surveys and other Geographical Operations in India for 1870-71 s.pdf 3.76 MB
1873 Abstract of Reports of Surveys and other Geographical Operations in India for 1871-72 s.pdf 3.49 MB
1874 Abstract of Reports of Surveys and other Geographical Operations in India for 1872-73 s.pdf 3.58 MB
1876 Abstract of Reports of Surveys and other Geographical Operations in India for 1873-74 s.pdf 3.26 MB
1877 Abstract of Reports of Surveys and other Geographical Operations in India for 1874-75 s.pdf 3.13 MB