LINNEAN SOCIETr 01" LONDOK. 4^ 



"wliite eggs of that species, an abnormality not often met with. 

 An examination of these eggs under the microscope showed that 

 in regard to the texture of grain of the shell thej agreed with 

 eggs of the Hedge-Sparrow, and not with those of the Eobin, of 

 which white varieties are not so rare. 



The following papers were read : — 



1. " On some jN'orth-A.mericanDesmidiese." Bj William West, 

 P.L.S., and G. S. West. 



2. " On the Structure of the Isopod Grenus Ourozeukfes." 

 By A. Yaughan Jennings, F.L.S. 



3. "A Revision of the G-enus >SVZ(?ffle." By F. Xewton Williams, 

 F.L.S. 



4. "The Egg-Cases of Port Jackson Sharks." By E. E. 

 Waite, E.L.S. 



APPENDIX. 



A Memoir of Gteoeg Diostsius Eheet *. 

 Born at Heidelberg, 30 Jan. 170S. Died in London, 9 Sept. 1770. 



[Written by himself, and translated, with notes, 

 by E. S. Barton.] 



Mt dear parents were Ferdinand Christoph and Anna Maria 

 Ehret, both natives of Heidelberg, who supported themselves 

 with difficulty by their own garden. On account of the early 

 death of my father, I was taken from school early and sent as a 

 gardener's apprentice to my father's brother at Bessungen, near 

 Darmstadt, where I had to do the most ignominious work during 

 my three years of apprenticeship. The instruction in the art 

 of drawing which I had received from my father (who was a 

 good draughtsman) I did not give up, notwithstanding the 

 slavery during my apprenticeship, and employed all my spare 

 hours in perfecting myself in sketches. As I gradually im- 

 proved in this art, my cousin employed me at the end of my 

 apprenticeship to draw sketches for him in his room. 



For some time 1 remaiued as journeyman gardener with my 

 cousin, and then returned to Heidelberg, remaining there more 

 than a year with my mother, who during my apprenticeship had 

 married Herr Anton Godfried Kesselbach. He had the two 

 gardens of the Elector of Heidelberg m his charge, one of which 

 he placed under the care of myselt and my brotiier. He was a 

 Catholic, but he made no objection whatever to our religion. 



About this time I -was recommended by my cousin to 

 Herr Joachim Sievert, gardener to the Margrave at Carlsruhe, 



* For some of his correspondence, see Proc. Linn. See. 1883-86, pp. 42-56. 



