LIIfNEAN SOCIETY OF LONDOX. 4r 



on " The Eiver Thames as an agent in Plant Dispersal,"' read 

 June 16, 1892, and on " The Habits of Lemna major, r/ihba, 

 &r\d jwli/rhiza," embodying the results of three ^years' systematic 

 observation of these small water-plants in the South-east of 

 England, read May 3, 1894. 



In asking you to accept this Medal, the highest award that the 

 Council of this Society can offer you, may I also express the 

 cordial wish, which we all share, that you may long remain with 

 us to continue the painstaking A^ork in which you have shown so 

 much enthusiasm and to which you have devoted so many years 

 of your life. 



The recipient briefly expressed his thanks for the great lionour 

 tlius conferred, and hoped that he might be able by future work 

 to justify the choice of the Council. 



The General Secretary having placed the Obituary Notices in 

 his liands, on the table, the proceedings ended by the President 

 reminding those present of the special circumstances of the next 

 Meetings on the 7th June, the last of the present Session. 



OBITUARY NOTICES. 



The death of Sakah Martha Baker on May 29, 1917, at the 

 early age of twentj^-nine adds another name to the list of young 

 and energetic workers who the Botanical world has x'ecently lost. 

 Her career as an ecologist and physiologist was one of exceptional 

 promise, and algologists specially have lost a colleague who could 

 ill be spared. 



Miss Baker was brought up as a Priend, and in her early days 

 was desirous of studying medicine with a view to missionary work 

 in the South Sea Islands. The plan was abandoned, in deference 

 to her parents' wishes, and she entered University College, 

 London, as a student in 1905, and took her B.Sc. in Chemistry 

 with Botany in 1909. After graduating she specialised in Botany 

 and received her D.Sc. in 1913 for a paper on " Quantitative 

 Experiments on the Effect of Pormaldehyde in Living Plants," 

 published in the ' Annals of Botany ' the previous year. For several 

 years and up to the time of her death she was Quain Student and 

 Lecturer in Botany at University College. She was elected a 

 Fellow of the Linnean Society on the 4th June, 1914. 



Four papers were published by Dr. Baker on the ecology of 

 the Brown Algae, and these have materially advanced our know- 

 ledge of this interesting subject. The first two, " On the 

 Causes of the Zoning of Brown Seaweeds on the Seashore," 

 were published in 1909 and 1910, and dealt with the zoning of 

 the open coast. They were partly descriptive, the vertical zones 



