flames were not always luminous, and by a series of experiments he showed that the luminosity of flames arose from solid particles contained within them, which became white-hot. This theory he illustrated by leading the smoke from a turpentine flame into a Bunsen burner, making the flame of the latter luminous: also by scattering powdered chalk in the flame. He gave further illustrations of this theory by the combustion of magnesium and phosphorus, proving that the luminosity was due to the presence of particles. Professor Brown then dealt with the arguments against this theory, as, for instance, the flame from arsenic. This he explained was an oxide, but he could not illustrate it, as without special provision there would be danger from the fumes. He, however, gave an illustration from carbon sulphide, which when applied to the oxygen jar created some sensation. There was a brilliant light for a moment and then a loud explosion, which created some consternation amongst the audience. He, however, showed that even here there was a solid body in the flame. Professor Brown then in a very interesting manner proceeded to show by a series of experiments that the luminosity of the flame of coal gas was due to the carbon particles contained in it. Ninth Meeting: 20th September, 1886. New Member.—Dr. Davy. Papers.—1. “New Species of Coleoptera, “by Capt. T. Broun. The following species were described:— Species. Locality. Group, Pogonidæ. Oöpterus collaris Mount Arthur " pallidipes " Group, Anchomenidæ. Tarastethus alpinalis " Group, Bembidiidæ. Bembidium anilloides Moko Hinou Island Group, Staphylinidæ Quedius fuscatus Mount Arthur Group, Pselaphidæ. Pselaphus citimus Howick Tyrus armatus " Exeirarthra enigma " Group, Cryptophagidæ. Telmatophilus olivascens Mount Arthur Group, Melolonthidæ. Stethaspis prasinus Wellington Costleya discoidea Mount Arthur Group, Dascyllidæ Mesocyphon pallidus " " laticeps " " Cyphon pauper " " discedens " " flavescens " " nigritulus " " fuscifrons " " fulvicornis " " ornatus Waitakerei Cyphanus dubious Waitakerei Range Cyphanodes vestitus " Atopida suturale Mount Egmont