Best known as a New Forest Dipterist (see his collections are in the Natural History Museum) but he did show an example of Cantharis rustica Fallen at the Entomological Society in 1892 (Proceedings of the Entomological Society of London 1892: iv) and I have seen beetles collected by him in the general collection at Doncaster Museum.
Chalmers-Hunt (1976) notices that a collection of beetles formed by Adams was auctioned by Stevens on 11 March 1919, but Hancock & Pettit (1981) state that this was, in fact, a collection of Diptera in six boxes and is now in Bolton Museum and Art Gallery. There is a letter from Adams to C.B. Wainwright from Victoria Street, London SW dated 1909 in the Royal Entomological Society (Pedersen (2002: 118). There are obituaries in Entomologist's News (1921, 32: 64), and Entomologist's Monthly Magazine (1920, 56: 256. (MD 7.01, 11/09, 9/22)