VOL. VIII.] PHILOSOPHICAL JRANSACTPONS. 123 



micklle of each joint. — 17. Alternate joints edged. — 18, 19, 20. Certain other 

 differences noted in the paper, but not perfectly expressed in the design. — 

 21. An entrochos with a branch of a good length. — 22. A branch of an entrochos 

 knocked off. — 23. An entrochos fruit-like. — 24. A fastigium or summitas. — 25. A 

 radix of an entrochos in perspective: where A is a joint or trochites yet remaining, 

 whence an entrochos was broken off. C, E, F, D, are four of the double feet ; 

 the 5th being hid. — 26. The same radix to be seen at the best advantage : A 

 the trochites or basis ; C, B, D, E, F, the five double feet. Note also the sex- 

 angular rough plates, which incrustate the stone or cover it all over. — 27. A 

 smaller radix with smooth plates and five single feet: H, the top stone ; I, one 

 of the five feet; K, one of the five angular plates which incrustate the middle of 

 the stone; G, the basis. Also the same stone in perspective; G, the same with 

 the hollow bottom upwards. 



Figures of Plates supposed to incrustate divers Roots. 



28. A pentagonal plate knotted. — 29. A thin edged smooth pentagonal plate. — 

 30. An indented pentagonal plate. — 31. The Northamptonshire pentagonal 

 plate. — 32. A large pentagonal smooth plate. — 33. An hexagonal plate, im- 

 bossed with angles. — 34. An hexagonal plate, as deep as broad. — 35, 37. Odd 

 figured plates. — 36. A quadrangular plate, ribbed and indented. 



Mr. Ray relates, that there are found at Malta certain stones, called St. Paul's 

 batoons, which he supposes were originally a sort of rock-plants, like small 

 snagged sticks, but without any joints ; the trunks of which diminish according 

 to the proportion of other plants after the putting forth of their branches. 



A farther Description and Representation of the Icy Mountain, called the Glet- 

 scher, in the Canton of Berne in Helvetia ; ivhich was formerly taken notice of 

 in N° 94 of these Tracts. N° 100, p. 619I. 



This paper is not sufficiently important to require reprinting. For descrip- 

 tions of this and other glaciers, see Coxe's Travels through Switzerland. 



A New Way hy an English Manifacture, to preserve the Hulls of Ships from the 

 JVorm, &c. ; better for sailing, and more cheap and durable than any Sheathing 

 or Graving hitherto used. N*^ 100, p. 6192. 



The method of sheathing here alluded to, is not described in this paper. From 

 some hints thrown out, however, it is guessed to be principally a casing of thin 

 sheet lead. But whatever it was, it seems to have been long since laid aside, 

 in favour of the copperplate sheathing now commonly used. 



r2 



