CONTENTS. 



VOLUME V. 



1850-1853. 



PAGE. 



On the Induction of Soft Iron, as applied to the Determination of 

 the Changes of the Earth's Magnetic Force. By the Rev. Hum- 

 phrey Lloyd, President I 



A Notice of the Cyclonic Gale of the 6th October, 1850. By the Rev. 

 Humphrey Lloyd, President 12 



On the same. By the Rev. Samuel Haughton 12 



On the Meteorological Observations published in the Proceedings 

 by Mr. George Yeates. By W. Hogan, Esq. ...... 12 



On the Reproductive System and Development of the Gemmae in 

 Paludicella articulata. By Professor Allman 18 



On the Isogonal Lines in Ireland. By the Rev. Humphrey Lloyd, 

 President 23 



On a Collection of Shoes made of Bronze, found near Coleraine. 

 By M. J. Anketell, Esq 27 



On the Cyclone of the 19th November, 1850. By the Rev. Hum- 

 phrey Lloyd, President 29 



On an ancient Brooch found near Drogheda. By George Petrie, 

 LL.D 36 



On the Artificial Production of Valerianic Acid. By James Apjohn, 

 M. D 40 



A Letter from R. Lepsius 44 



On an Irish MS. of the Four Gospels in the British Museum. By 

 the Rev. William Reeves, D. D 45 



On the Improvement of Lighthouses. By M. Donovan, Esq. . C)S 



On the Structure of the Muscular Fibre in the Polyzoa. By Pro- 

 fessor Allman 68 



On the Vitrified Fort at Shantamon, Co. Cavan. By the Rev. W. P. 



Moore 69 



On a Geometrical Proof of Joachimstal's Theorem. By the Rev. 



Charles Graves, D. D 70 



