March 5. — The President exhibited a beautiful model of the "Portuguese Man- 

 of-War" (vhysalia utriculusj, and made some remarks on this 

 curious animal. The paper of the evening was read by Mr. 

 Alexander Baeron, M.B. M.R.C.S. on the "Development, 

 Structure, and Functions of the Eye." The lecturer first described 

 tlie structure of the human ej'e, fully explaining all its parts, and 

 dwelling minutely on the marvellous composition of the retina, 

 &c. He then gave an account of the development of the eye in 

 the embryo, as exemplified in the chick, &c. and concluded by 

 explaining the optical functions of the eye, its power of accommo- 

 dation to light, distance of objects, &c. The lecture was illustrated 

 by diagrams and models. After some discussion, in which the 

 President and several other members joined, a hearty vote of 

 thanks was given to the lecturer. 



At the Conversazione the following subjects were illustrated : — 



Section of Rabbit's Eye \ 



Optic Disc, Human, normal 



Do. do. inflamed V Dr. Barron. 



Corneal Corpuscles 



Choroidal Vessels, injected / 



^i Section of Chick's Head, showing development of 



■G I Lens and Retina W. Oelrichs. 



"S Do. Sheep's Eye, sho'ving Optic Nerve Lsaac C. Thompson. 



Do. Eye of Drone Fly J. J. Howell. 



Do. Sclerotic coat, human C. G. Lee, M.R.C.S. 



Do. Cornea, with nerve and nuclei T. W. Bruce. 



Cornea of Eye of Beetle Charles Botterill. 



Choroid, \vith pigmentum nigrum John Vicars. 



Fusiform Cells from wood of Scotch Fir Thomas C. Ryley. 



Petiole of Limnanthemum, transverse section T. Oliver. 



April 2.— Thomas Higgin, F.L.S. assisted by F. T. Paul, F.R.C.S. aided by 

 the oxy-hydrogen lantern, practically demonstrated the use of the 

 Micro-Photographic Ap^jaratus recently presented by him to the 

 Society, taking and developing on the spot photographs of some 

 of the objects exhibited. 



At the Conversazione the following subjects were illustrated : — 



Crisia denticulata, and other Polyzoa William Oelrichs. 



Diatoms, various , T. W. Bruce. 



Lantern fitted with Watson's microscope stage and prism, 

 for use with ordinary microscope objectives A. Norman Tate. 



Larva of Sea Anemone, from Hilbre Isaac C. Thomp.son, 



