Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v1.c5.27

v1.c5.27

It goes without saying that the index is very covenient for the purpose of reference. But experience alone can show how difficult it is to prepare an index. As it would have a long time to prepare it single handed, I have myself prepared only the subject index. In preparing the remaining indices I received considerable help from the present students of the Poona Training College. But as the work has passed through many hands and the lists were copied out five times before their final printing, some errors of omission and commission may have crept in at places; but no one could help it. It is the practice of our writers to include their works on Arithmetic and Algebra among those on astronomy and the practice has been adopted in preparing the index; similarly, the names of almanacs, Sanskrit and Marathi works and their authors have been included in the Sanskrit list. The letter Ṭi (denoting Ṭip or footnote) has been left out at places before the page numbers in the index.