MARCH] Price Is. 6d. [1881. 



TPvxiNSACTIONS 



OF THE 



HERTFORDSHIRE 



NATURAL HISTORY SOCIETY 



AND 



FIELD OLUB. 



(a continuation of the transactions of the "WATFORD NATURAL HISTORY SOCIETY.) 

 EDITED BY JOHN HOPKINSON, F.L.S., F.G.S. 



VOL. I. PART 3. 



CONTENTS : p^c,5 



10. Notes on Sponges, Recent and Fossil. By Henry Gilbertson 97 



11. The Post-Tertiary Deposits of Hertfordshire. By J. Vincent Elsden, B.Sc, 



F.C.S. (Hlustrated) 103 



12. Observations on Rotifers, with special reference to those found in the Neigh- 



bomhood of Hertford. By F. W. Phillips. (With a Plate. ) 113 



13. Meteorological Observations taken at "Wansford House, Watford, duiing the 



year 1876. By John Hopkinsou, F.L.S., F.M.S., etc., Hon. Sec 121 



14. Report on the Rainfall in Hertfordshire in 1879. By John Hopkinson. (With 



a Map of Hertfordshire) 127 



15. Eeport on Phenological Observations in Hertfordshire in 1879. By John 



Hopkinson 133 



16. Notes on the Fluke in Sheep. By Alfred T. Brett, M.D 139 



17. Miscellaneous Notes and Observations 143 



DAVID BOGUE, 3, ST. MARTIN'S PLACE, W.C. 

 WATFORD: I HERTFORD: 



PUBLIC LIBR.\RY, QUEEN'S ROAD. | STEPHEN AUSIIN AND SONS. 



1881. 



