Before the journey : February-October 1854
The journey out : October-December 1854
Government House : December 1854-February 1855
From Calcutta to Ootacamund : February-March 1855
The Western ghats : April-October 1855
Mysore to Calcutta : October-November 1855
Final months in Bengal : December 1855-March 1856
The voyage home : March-May 1856.