By Baron Ferd. Von Muller. There are few men who have worked so hard and so successfully as Baron Von Muller to make Botany practically useful to the Australians. The present work of near 300 pages is the fifth of a series contributed to, and published by, the Acclimation Society. It makes the people of the country at once acquainted with all that is known of the value of plants introduced into the colony. For instance, the following note on our Kentucky Coffee:"Gymnocla-dus Canadensis, Lamarck. The Chicot, a North American timber and avenue tree, attaining a height of eighty feet, allied to the Gleditschia, but, as its name implies, thornless. The wood is strong, tough, compact, fine-grained, and assumes a rosy color".

Australia should feel proud that it has so eminent a worker engaged in her interest as Baron Muller.

Dr. Charles Pickering - the naturalist of the Wilkes' exploring exhibition, and after whom Pickeringia was named, died at Boston on the 8th of March, aged 73 years. He was a cotem-porary of Thomas Nuttall, and many of the facts given in the biography of Mr. Nuttall in our second volume, were contributed by him. He was a liberal-spirited man. The arrangement and indexing of the general Herbarium of the Academy of Natural Sciences of Philadelphia Involving a great sacrifice of time and labor, was the sole work of Pickering and Dr. Bridges, who still lives.