35 



idem cum praecedente liber , forma mutata ; 

 rec. Acta Erud. 1746. p. 67. Journ. des Sav. 

 Tom. 129. p. 147. 

 Guettard , Jean Etienne , Memoires etc. 



dahs les Mem. de FAcademie des sciences de- 

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Nouvelle Collection de memoiresetc. Paris. Tom. 

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Musard , F. Schreiben an Hrn. Jallabert , von den 

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Boulanger , > Schreiben betreffend den 



Brief des Hrn. Musard an Hrn. Jallabert. Ibid. 

 p. 243—251. 



Albrecht j Ioannis Sebast. 9 Dubitationes et con- 

 jecturae circa duo petrefacta ex scriniis igno- 

 rantiae repetita. i u^j 



Acta AcacL Natur. Curios. Vol. io. p. 21 i — 2i5. 



Gilkes 9 Moreton , Letter , giving some account of 

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 shire , with his conjectures eoncerning petre- 

 faction in general. 

 Philos. Transact. \j!\O t p. 352. 



Gimma., Giacinto, Della storia naturale delle gemme^ 

 delle pietre e di tutti i minerali 3 overo della 

 fisica sotterranea ; in Napoli. 1730. 2. Voll. 

 4. Tom. II agit de marmore etc. — de Cerau- 

 niis , Echinite , Glossopetra 9 — p. 232. de la- 

 pidibus figuratis, Belemnitis et aliis petrefactis. 



Beaumont , Iohn , junioris ; Two lettres written in 

 Sommersetshire concerning rock-plants 9 and 

 their growth. 



3* 



