1888-89.] 
Meetings of the Society. 
819 
Monday , 2 Oth May 1889. 
Sheriff Forbes Irvine in the Chair. 
The following Communications were read: — 
1. Obituary Notice: Professor Madvig. By Professor Sellar. P. 
2. On the Identity of Hofmann’s “ Dibenzyl Phosphine ” with Oxide 
of Tri-benzyl-Phosphine, and on some other Points connected with the 
Phosphorized Derivatives of Benzyl. By Professor Letts and R. F. 
Blake, Esq., Queen’s College, Belfast. P. xvi. 193. 
3. The Development of Diarthrodial Joints in Birds and Mammals. 
By D. Hepburn, Esq., M.B. Communicated by Sir William Turner. 
P. xvi. 258. 
4. Observations on the Progressive Movement of Detached Ciliated 
Portions of Frogs and Tortoises. By D. M ‘Alpine, Esq. Communicated 
by Dr G. Sims Woodhead. 
5. Observations on the Progression, Pulsation, and Quivering of 
Excised Hearts of Fish, Frogs, Reptiles, Birds, and Mammals. By D. 
M ‘Alpine, Esq. Communicated by Dr G. Sims Woodhead. 
6. On the Solubility of Carbonate of Lime in Fresh and Sea Water. 
By W. S. Anderson, Esq. Communicated by Dr John Murray. P. 
xvi. 319. 
Monday , 3 rd June 1889. 
Sheriff Forbes Irvine in the Chair. 
1. Photographs of Mirage were exhibited by Lord Maclaren. 
The following Communications were read : — 
2. On Strophanthus hispidus: its Natural History, Chemistry, and 
Pharmacology. Part II. By Professor T. R. Fraser, M.D. P. xvi. 
743 (Abstract)-, T. xxxv. 
3. On the Compressibility of Mercury. By Professor Tait. 
4. Notice of Fundamental Tables in Trigonometry and Astronomy, 
arranged according to the Decimal Division of the Quadrant. By E. 
Sang, LL.D. P. xvi. 249. 
5. Quaternion Note on a Geometrical Problem. By Professor Tait. 
P. xvi. 315. 
6. On the Non-oscillating Pendulum. By Professor Tait. 
7. On Bravais’ Uniform Distribution of Points. By Sir William 
Thomson. 
The following Candidates for Fellowship were balloted for, and 
declared duly elected Fellows of the Society :■ — 
George H. Geddes, Esq., C.E. 
William Peck, Esq., F.R.A.S. 
Robert Wilson, Esq., M.Inst.C.E. 
The Rev. Robert Munro, M.A., B.D., F.S.A. Scot. 
