526 Dr. Mac Cull OCH on Vegetable remains 



18. Fibres of a brown colour, with whose nature I am unac- 

 quainted. They are possibly vegetable, but I had not enough to 

 apply the chemical test to the specimen. 



19, 20, 21. Were drawn for the purpose of shewing various 

 coloured fibres which are among the most common of those found 

 in chalcedonies. The generally great decision and character of 

 their ramifications seem to establish them as vegetable fibres, and 

 which, as I observed in the paper, have lost their colour by the pro- 

 cess of death going hand in hand with their lapidification. 



22. Appears to consist of fragments of a lichen of the follaceous 

 imbricated kind, akin to centrifugus and saxatilis, and bearing a 

 considerable resemblance in colour and general appearance to Parme- 

 lia Borreri, as figured in the Leinnean Transactions. The fragments 

 are too insufficient in extent, and too deeply bedded in the stone to 

 admit of any very accurate judgment respecting their affinities. 



23. Is another example of a moss, apparently of the same family 

 with that figured at No. 7. I have drawn it precisely as it appears. 

 It differs from the former in the more orbicular and obtuse form of 

 the leaves. It is contained in a large nodule of chalcedony, which 

 exhibits much colour and the zonular disposition. 



24. 25, and 26. Brown ramified fibres of the same apparent 

 nature as 19, 20, and 21. For these drawings I am indebted to 

 Mr. Blore, and they are from specimens in his possession which I 

 have not had an opportunity of examining very particularly. 



27. These are contained in an oriental chalcedony or mocha. 

 They arc evidently hollow tubes, of which various aspects are ex- 

 hibited by the chance section of the stone. 



28. Similar tubular bodies which appear equally to belong to the 

 same class of beings. I have figured these because they had been 



