288 Mr. R. Etheridge, F.R.S. — Silurian Rocks in Herts. 



old rocks underlying the Tertiary and Cretaceous strata of the 

 London Basin. It is to be hoped that the direction of the " strike " 

 may be determined in the course of a few weeks, a matter of 

 paramount interest and importance to a true understanding of the 

 distribution of the Paleeozoic and other rocks, either here or under- 

 lying any other area where it has been determined they exist. 



This is at present a problem of the first consideration in deep- 

 boring, and upon its successful solution must depend in great 

 measure the practical value of our knowledge that strata of high 

 economic importance probably lie within an accessible depth beneath 

 our feet. Until we know approximately the ' strike ' of these Palaeo- 

 zoic rocks, it will be of little avail to suggest where next to seek, or in 

 what direction we should test them by further experimental borings. 



The following fossils have been determined by Mr. Etheridge 

 from the few feet of cores examined : — 



14. Pentamerus linguifer, Sby. 



15. Strophomena euglypha, Dalm. 



16. ■ depressa, Dalm 



17. rhomboidalis, Wilckens. 



I. Protozoa. 



1. Ischadites Kcenigii, Murch. 



II. EcHINODERMATA. 



2. Taxocrinus, sp. 



III. Annelida. 



3. Tmtaadites ornatus, Sby. 



IV. Crustacea. 



4. PJiacops caadalus, Briinn. 



V. Molltjsca-Brachiopoda. 



5. Orthis canaliculata, Lindst. 



6. Meristella tumida, Dalm. 



7. Cyrtia exporrecta, Dalm. 



8. Spirifera plicatella, Linn. 



9. Athyris, sp. 



10. Crania implicata, Sby. 



11. Ehynchonella cuneata, Dalm.? 



or deflexa, Sby. 



12. Airypa reticularis, Linn. 



13. Pentamerus galeatus, Dalm. 



18. antiquata, Sby. 



19. Chonetes, sp. 



20. Leptmia sericea, Sby. 



21. transversalis, Dalm. 



22. Streptorliynclvus, sp. 



CONCHIFERA. 



23. Pterincea, sp. 



24. Mytilus mytilimeris, Conr. 



25. Orthonota rigida, Sby. 



Gasteropoda. 



26. Euomphalus rugosus, Sby. 



Cephalopoda. 



27. Orthoceras attemiatum, Sby. 

 28. sp. 



OBITUARY. 



Trenham Beeks, Died 5tb May, 1879. 

 With much regret we record the death of Mr. Trenham Eeeks, the 

 esteemed Eegistrar of the Eoyal School of Mines, Jermyn Street. 

 By bis death one of the oldest associations of the Geological Survey 

 and School of Mines is severed. When only about sixteen years of 

 a^e, he became connected with the infant Museum established by the 

 energy of his friend, Sir Henry de la Beche, in Craig's Court; and on 

 the enlargement of that establishment, and the creation of the School 

 of Mines, he was appointed to the office he has held until now ; so 

 that, although but 56 years of age, he had seen nearly 40 years 

 of public service. Having worked at Chemistry and Mineralogy 

 under Bichard Phillips, F.B.S., he devoted himself to the enrichment 

 of the Mineralogical collection under his charge in Jermyn Street. 

 He also possessed great knowledge of pottery, and his illustrated 

 handbook of the Ceramic collection is still a valued work of reference. 

 Personally he was singularly courteous and obliging, and he so 

 thoroughly identified himself with the interests of the School of Mines, 

 that his loss to that Institution will long be felt. — ("Nature," May 8.) 



