The fist number of L. refer to the standard CtP edition published in 1987. The following number shows correspondence between letters in the new 2010 edition. Note that on this website CtP is available only 1987 edition with minor additions.

[L. 28 | 35] 16 April 1963

As regards possible help to other people, I have made notes on my understanding of the Buddha's Teaching, and there is the prospect that they will be printed. I should be glad to see them safely through the press myself personally (though they are, in fact, in good hands). This gives me at least a temporary reason for continuing to live, even though the survival of the notes affects other people more than myself. (A doubt remains, however, whether anybody will find the notes intelligible even if they do survive.)