162 PROCEEDINGS OF SOCIETIES. 



various purposes of Research ;" on November 3rd, " A New Method 

 of Measuring the Position of the Bands in Spectra," so as to secure 

 uniformity of standard and accuracy of result. 



" On the Principles of Testing Object-glasses by Miniatures of 

 Illuminated Objects examined under the Microscope," by Dr. G. W. 

 Royston-Pigott, F.R.S., November 3rd ; by the same author,^ " On 

 the Identical Characters of Chromatic and Spherical Aberrations," 

 October 6th. 



" On the Method of obtaining Oblique Vision of Surface Structure 

 under the Highest Powers of the Microscope," by F. H. Wenham, 

 March 3rd. 



" On the Measurement of Angular Aperture," by J. W. Stephen- 

 son, June 2nd. 



" On Angle of Aperture in Relation to Surface Markings," by H. 

 J. Slack ; and by the same. May 5th, " Notes on the Use of Mr. 

 Wenham's Reflex Illuminator," June 2nd. 



Scientific Evenings. 



During the past year the Society has held two Scientific Evenings, 

 which have been well attended, and remarkable for the number of 

 interesting objects exhibited. They have also been successful in 

 promoting the friendly intercourse of Fellows. 



Eleven gentlemen have been elected Fellows during the year, and 

 the Society has to regret the loss of nine ordinary and one honorary 

 Fellow by death. 



Obituary. 



Daniel Hanbury, eldest son of Daniel Bell Hanbury, of the well- 

 known firm of Allen, Hauburys, and Barry, was born Sept. 11, 

 1825. He was best known in connection with the Pharmaceutical and 

 Linnean Societies, of which latter he was the treasurer at the time of 

 his death, having performed the duties of that office for some years. 

 As is well known, be had assiduously and successfully directed him- 

 self to the study of the various vegetable products used as drugs. No 

 trouble, or expense, was thought by him too much to clear up the 

 obscurity which did, and which still does, exist respecting the origin 

 of many of these products. No less than sixty papers by him on such 

 subjects are contained in the ' Pharmaceutical Journal.' His great 

 work was the ' Pharmacographia,' written in conjunction with Pro- 

 fessor Fliickiger, published in 1874 ; but he was also the author of 

 various other essays connected with his favourite subject. He was a 

 valuable friend of the Pharmaceutical Society, and his exertions and 

 example contributed effectively to the improvement of the education 

 and status of chemists and druggists. 



Mr. Hanbury made a very important collection of drugs and phar- 

 maceutical preparations. He was acquainted with several European 

 languages and skilful in water-colour drawing. He belonged to the 

 Society of Friends, He was a Fellow of the Royal and Chemical 



