ON THE CIRCULATION OF UNDERGROUND WATERS. 



241 



Appendix IV. 

 List of Questions Circulated. 



Xa. 



2. 



1. Position of well or shafts with which 

 you are acquainted 1 

 State date at which the well or shaft 

 was originally sunk. Has it been 

 deepened since by sinking or 

 boring 1 and when ? 



Approximate height of the surface of 

 the ground above Ordnance Datum 

 (mean sea-level) 1 



Dejjth from surface to bottom of shaft 

 or well, with diameter. Depth 

 from surface to bottom of bore- 

 hole, with diameter ? 



I Depth from the surface to the hori- 

 zontal drift-ways, if any ? What 

 is their length and number ? 



Height below the surface, at which 

 water stands he/ore and after pump- 

 ing. Number of hours elapsing 

 before ordinary level is restored 

 after pumping 1 

 Height below the surface, at which 

 the water stood when the well was 

 first sunk, and height at which it 

 stands now when not pumped ? 



5. Quantity capable of being pumped 



in gallons per day of 21 hours ? 

 Average quantity daily pumped ? 



6. Does the water lex-el vary at different 



seasons of the year, and to what 

 extent 1 Has it diminished during 

 the last ten years 1 



4. 



4a. 



7. Is the ordinary water level ever 



affected by local rains, and, if so, 

 in how short a time ? And how 

 does it stand in regard to the level 

 of the water in the neighbotiring 

 streams, or sea 1 



8. Analysis of the water, if any. Does 



the water possess any marked 

 peGuliarity 1 



9. Section with nature of the rock passed 



through, including cover of Drift, 

 if any, with thickness ? 

 9a, In which of the above rocks were 

 springs of water intercepted ? 



10. Does the cover of Drift over the 



rock contain surface springs ? 



11. If so, are these land springs kept 



entirely mtt of the well ? 



12. Are any large faults known to exist 



close to the well 1 



13. Were any brine springs passed 



through in making the well ? 



14. Are there any salt springs in the 



neighbourhood ? 



15. Have any wells or borings been dis- 



continued in your neighbourhood 

 in consequence of the water being- 

 more or less irachish 1 If so, 

 please give section in reply to 

 query No. 9. 



16. Kindly give any further information 



you can. 



Second Re'port of the Committee, consisting of Mr. W. T Blanford, 

 Professor J. W. Judd, and Messrs. W. Carruthers, H. Wood- 

 ward, and^. S. G-ardner (Secretaoy), appointed for the purpose 

 of reporting on the Fossil Plants of the Tertiary and Secondary 

 Beds of the United Kingdom. 



[Plate VII.] 



Our attention has been devoted exclusively this year to the fossil flower- 

 ing or phanerogamoas plants. 



The results of our researches point to the conclusion that while that 

 section known as Gymnospermous, to which the Conifers belong, is of 

 the highest antiquity, being almost coeval with the first definite remains 

 of plants in the PaljBozoic age, there are no Angiospermous plants in 

 British rocks of greater antiquity than the Secondary period, if we except 

 the problematic plant known as Spirangium. Even down to so late as 

 the Lias we have been unable to ascertain that any indisputable Angio- 

 sperm has been discovered within our area, for we are led to the conclu- 

 sion that the supposed Monocotyledons from the Rha3tics, near Bristol, 

 1886. B 



