Incorporates lengthy extracts from Official sources. Includes:
* Summary by HJ Wilson from official and unofficial sources of the prevalence of disease for all Naval Stations (other than Home) with indication of whether regulation practised or suspected.
* Detailed survey with statistics and extracts from official sources, lettered A - K, comprising 31 Manuscript sheets; `A' relates to `Total Force', `B' to `Home Station', the rest to all the remaining stations, foreign and colonial, 1870-1898 (except `A' and `B' that start in 1862.).