‘Guide through the collection of the natural history museum’
Research material: An itinerary of one of my visits to the collection of the Natural History museum Rotterdam. A selection of flora and fauna taken from Heimans’ articles, with additional notes (in what order to move through the collection depot) of the conservator.
Source: F.I. Brouwer, Leven en werken van E.Heimans en opbloei der natuurstudie in Nederland in het begin van de twintigste eeuw (J.B. Wolters: Groningen, 1958), 200.