[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Historical geography](https://indike.org/pramana/ins.geography) › [The Ancient Geography of India. I. The Buddhist Period, including the Campaigns of Alexander, and the Travels of Hwen-Thsang](https://indike.org/pramana/ins.geography.cunningham-1871) › c12.7 # The Ancient Geography of India. I. The Buddhist Period, including the Campaigns of Alexander, and the Travels of Hwen-Thsang c12.7 The Ancient Geography of India. I. The Buddhist Period, including the Campaigns of Alexander, and the Travels of Hwen-Thsang c12.7 - **Language:** English ### [c12.7](https://indike.org/pramana/ins.geography.cunningham-1871.c12.7) The different corrections to be applied to Ptolemy's eastern longitudes on account of these three errors have been calculated by Sir Henry Rawlinson to amount to three-tenths, which is within one-seventieth part of the empirical correction used by M. Gossellin. - [Previous: c12.6](https://indike.org/pramana/ins.geography.cunningham-1871.c12.6) - [Next: c12.8](https://indike.org/pramana/ins.geography.cunningham-1871.c12.8) - [Up: c12](https://indike.org/pramana/ins.geography.cunningham-1871.c12) --- Source: [https://indike.org/pramana/ins.geography.cunningham-1871.c12.7](https://indike.org/pramana/ins.geography.cunningham-1871.c12.7) · Pramāṇa