Letter from Victor Alexander Haden Horsley to Peter Chalmers Mitchell regarding arrangements made in the Zoological Society in the way of recording the wants of workers as regards material, and his desire to acquire the brain of a Hyrax

Correspondence with the Royal Zoological Society of Ireland regarding the transportation of part of the brain of a Canada Lynx to the Zoological Society of London, the transportation of cormorants, and the use of copper sulphate to keep Sea Lion ponds free from algae