TOL. LVII.] PHILOSOPHICAL TRANSACTIONS. " 465 



with many other zoophytes, that have such roundish ovaries; they must be re- 

 called to the vegetable kingdom, notwithstanding all doubt about their being 

 living animals has been long laid aside. 



I come now to Dr. Baster, who carries this matter still farther, and says posi- 

 tively in Philos. Trans., vol. 52, p. 1 U, (Abridgment, vol. 1 1, p. 537) that the 

 corallines are true confervas; and in his Opuscula Subseciva, (vol. 1, tab. 1, fig. 

 3, A andB) he refers us to the figure of the corallina rubens in seed; which, he 

 says, is a true conferva ; but the figure is so bad, that I am persuaded nobody 

 can find out what he means to represent by it. 



I shall therefore conclude this letter, with recommending to these ingenious 

 gentlemen, to analyse these bodies chemically, and with care; and also to view 

 them with the same attention that I have done, in the microscope; if so, I am 

 persuaded they will be of our opinion. I must defer the sequel of what I in- 

 tended to another day, which was to give you an account of the discoveries I 

 have made in the fructification of the confervas; these, I flatter myself, will 

 fully convince Dr. Baster of the great difference between these two bodies, and 

 that they belong to two different kingdoms of nature. 



Description nf plate 1 1 — Fig. 1, the rairiozoon of Donati, or millepora truncata of Pallas. — 2. the 

 end of a branch magnified, to show the situation of the pores. — 3. The same cut perpendicularly 

 through, to show the trumpet-like suckers in their cells, connected with the middle tubes. — 4^. The 

 horizontal section of the same, with the suckers extended. — 5. The magnified drawing of one of 

 the suckers, with its cells and operculum. — 6. The oblique view of the opening of the cell with the 

 sucker and operculum. — 7. The cell with the operculum open. — 8. The cell covered with its oper- 

 culum. — 9. The corallium lichenoides of Ellis's corallines, with ovaries on it. — 10 and 11. The na- 

 tural and magnified size of a piece of this coral, to show the arrangement of the inside of the cells, 

 which are just the same as in the following. — 12. The order of the cells, in a joint of the corallina 

 officinalis, to show the great affinity between them. — 13. The natural size of a small piece of the 

 corallina officinalis. — 14. The milk-white millepora calcarea, from the Mediterranean, where, though 

 the pores are not visible on the outside, the arrangement of the cells in the inside are the .same with 

 the corallium lichenoides, and corallina officinalis. — 15. The corallina rosarium, or white-bead band- 

 string of Sloane's Hist, of Jamaica, tab. 20, fig. 3. — 16. Two joints magnified, one to show the situa- 

 tion and figure of the pores, and the other to show how the suckers pass from the middle cartilagi- 

 nous tube through the calcarious covering to the surface. — 17. Four of the suckers, and the ovary 



between them, magnified highly. — 18. The ovary. — 19- One of the eggs taken out of the ovary. 



20. The corallina incrassata, from the West Indies. — 21. One of the joints of its natural size.— 22. 

 The same magnified a little, to show its pores in its calcarious surface. — 23. Part of the inside tubes 

 of the joint, of their natural size. — 24. The same magnified, to show the openings of the cells on 

 the surface, connected together. — 25. A perpendicular section of half of one of tliese joints. — 26. 

 The same magnified, to show the figure of the vessels leading to the suckers in the calcarious sur- 

 face. — 27. A piece of the calcarious surface highly magnified, to show some of the pores open, and 

 others covered with their convex opercula; letter a shows the figure of one of the trumpet-shaped 

 suckers highly magnified. — 28. A small branch of Meese's coralline supposed to grow on a heath, 

 called by Dr. Pallas corallina terrestris. — 29- The same magnified, to show the disposition and figures 

 of its supposed fructification at a, b, cc, and d, which are higher magnified at a, b, cc, and d, to 

 show how unlike they are to fructifications. 



VOL. XII. 3 O 



