He made a number of expeditions to collect material for the museum including the Percy Sladen Trust Expedition to the Abrolhos Islands in 1913.
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An Abrolhos squall (or Abroholos squall or simply abroholos) typically occurs from May through August (austral winter) near the Abrolhos Islands off the coast of eastern Brazil near 18°S latitude, located between Cabo de São Tomé and Cabo Frio.