Only fifteen years later, however, the Market Street facility fell victim to the 1906 San Francisco earthquake and three days of fire, which also wiped out all but a wheelbarrow full of the Academy's library and specimen collections.[citation needed] In the widespread destruction occurring in the aftermath of the quake, Academy curators and staffers only were able to retrieve a single cart of materials, including Academy minute books, membership records, and 2,000 type specimens.[citation needed] Fortunately, the 1905-1906 scientific collecting expedition to the Galápagos Islands (the first of several sponsored by the academy to the archipelago) already was underway, and it returned seven months later, providing replacement collections for those lost.