While he was in the Malay Archipelago, the sale of specimens had brought in a considerable amount of money, which had been carefully invested by the agent who sold the specimens for Wallace.
Saat ia berada di Kepulauan Melayu, penjualan spesimen-spesimen menghasilkan uang yang jumlahnya lumayan besar, yang diinvestasikan secara hati-hati oleh agen penjual spesimen-spesimen Wallace.