CELEBRATION ADDRESSES 103 



IRON AND STEEL INSTITUTE, LONDON 



INSTITUTI FEREI ET CHALYBIS PRAESES ET CONCILIUM ET Socn PRAESIDI ET CON- 

 CILIO ET SODALIBUS SociETATis REGALis Salutem. Fausta oblata occasione, quod 

 natalem diem doctissimae vestrae Societatis annos iam CCL constitutae 

 celebrandum statuistis, antiquissimae et illustrissimae omnium in hac patria 

 nostra societatum, quae Scientiae Naturali promovendae studuerunt, nos laeti 

 et pietate affecti, cum ceteris huiusce generis societatibus, parenti nostrae 

 insigni et dilectae gratulationem non simulatam agimus, et vota conferimus ut 

 stabilita in annos floreat et praevalescat. 



Datum Londinii, Id. lul. MCMXII et manu nostra et signo cotifirmatum. 



ARTHUR COOPER, Praeses. 

 G. C. LLOYD, Secretarius. 



LINNEAN SOCIETY, LONDON 



THE LINNEAN SOCIETY OF LONDON desires to present its congratulations to 

 the Royal Society of London oh the celebration of the two hundred and 

 fiftieth Anniversary of its foundation, on the completion of a period which 

 has witnessed so vast a development of the Sciences, and on the noble part 

 which the Society itself has borne in this boundless ' Improvement of Natural 

 Knowledge 1 . The Linnean Society rejoices to recall, not only the many who 

 have been and are on the Rolls of both Societies, thereby constituting links 

 between the two, but also that Sir Joseph Banks, who took a large part in the 

 foundation of the Linnean Society, presided for forty-one years over the Royal 

 Society, and that the great Swedish naturalist whose name is borne by the 

 Linnean Society, was also a Foreign Member of the Royal Society. 



Given under the Common Seal of the Society this Twentieth day of 

 June, 1912. 



EDWARD B. POULTON, President. 

 B. DAYDON JACKSON 



OTTO STAPF 

 GILBERT C. BOURNE 



Secretaries. 



LISTER INSTITUTE OF PREVENTIVE MEDICINE, LONDON 



PRAESIDI SODALIBUSQUE ILLUSTRISSIMAE SOCIETATIS REGALIS REGENTES, 

 PROFESSORES, STUDIOSI IN COLLEGIO QUOD LISTER INSTITUTE OF PREVENTIVE 

 MEDICINE APPELLATUR S. P. D. Libenter, viri doctissitni, litteras vestras 

 accepimus necnon summa erga vos voluntate quod, tot annis rite peractis in 



