A fascinating visit to the holy of holies, the National Library of Medicine. We were shown among other things their Turning the Pages project, done using the system developed by the British Library and including, doubtless with help from Bruce Madge, their copy of Elizabeth Blackwell's A Curious Herbal, the Visible Human, the NCBI work on the Human Genome and both the general and history of medicine reading rooms.
There are some photographs in the photo album.
And at last I came upon the cicadas in all their noisy splendour...