This distinguished Botanist, whose work in Australia is so well known and appreciated in the United States is the subject of an admirable likeness in the L'Horticulteur Belgique, for June. From the notice, we learn that the Baron was born at Rostock, in Germany, on the 30th of June, 1825. In 1839 he entered on a course of studies as a physician, but early showed a disposition for science - especially for Botany and Chemistry. Still he pursued his medical studies, and in 1846, and 1847, found him in the University of Kiel. But his health suffering in the cool German climate, he determined to settle in Australia. His passion for botany increased as he surveyed the unknown forests of this wonderful land, and between 1848 and 1852, he made numerous voyages of discovery. His remarkable successes, requiring as they did so much courage and perseverance, commended him to the colonial government, and in 1852 he was chosen government Botanist, to the Colony of Victoria. He took an active part in the Gregory expedition for the relief of the unfortunate Louis Leichardt and his companions. On the failure of this, Mueller himself organized a new one, which though failing in its immediate objects, produced invaluable scientific results.

In 1856 he became Director of the Melbourne Botanic Gardens. He has produced no less than 175 volumes on various subjects connected with Australian advancement. He will be best known to Americans by his profound researches among the numerous species of Blue Gum or Eucalyptus. His labors have been acknowledged all over the world, and he has received honors from the governments of England, Portugal, Spain, Denmark, Austria. France and Germany, have sent him honors seldom accorded to the mere scientific man; and the Queen of England has quite recently added to what that country has already done, by making him a Knight Commander of one of the honorable Orders of that Kingdom.