IV CONTENTS. 



Page 

 Hill Hassall, M.R.C.S.L., Corresponding Member of the Dublin 

 Natural History Society 84 



XI. On some species of European Pines. By Capt. S. E. Wid- 

 DRINGTON, R.N 87 



XII. Diagnoses Algarum novarum a cl. Dre. Ferdinand Krauss in 

 Africa Australi lectarum, auctore Dno. Hering, Stuttgartiensi 90 



XIII. Observations on the Structure of the Pollen Granule, consi- 

 dered principally in reference to its eligibility as a means of Classi- 

 fication. By Arthur Hill Hassall, M.R.C.S.L., Corresponding 

 Member of the Dublin Natural History Society 92 



XIV. Indian Ci/prinidce. By John M'Clelland, Assistant Surgeon 

 Bengal Medical Service. (Continued.) 108 



XV. Notice of a hitherto undescribed character distinctive of the 

 Sexes in certain Lucanidce. By J. O. Westwood, F.L.S 121 



XVI. Insectorum novorum Centuria, auctore J. O. Westwood 123 



XVII. Notice of Migratory Bii-ds which alighted on, or were seen 

 from H.M.S. Beacon, Capt. Graves, on the passage from Malta to the 

 Morea at the end of April 1841. By Wm. Thompson, Vice-Pres. Nat, 

 Hist. Society of Belfast 125 



XVIII. Report of the Results of Researches in Physiological Botany 

 made in the year 1839. By the late F. J. Meyen, M.D., Professor of 

 Botany in the University of Berlin. {Continued.) 130 



New Books : — Naturalist's Library : — The Natural History of Dogs, 

 vol. ii. ; The Natural History of Horses ; The Natural History of 

 Fishes, vol. ii 137 



Proceedings of the Zoological Society; Microscopical Society... 138 — 152 



Mr, Schomburgk's return to George-Town ; Mr. W. S. MacLeay ; 

 Lieut. Tickell on the Natural History of the Hodesum (improperly 

 called Kolehan) ; Fossil Foraminifera in the Greensand of New 

 Jersey ; A vast Stratum of Fossil Infusoria in the Tertiary Strata 

 of Virginia ; Mr. R. C. Taylor's Model of the Southern Coal-Field 

 of Pennsylvania ; Meteorological Observations and Table... 153 — 160 



NUMBER L. 



XIX. Description of some new species of Ammonites found in the 

 Oxford Clay on the line of the Great Western Railway near Christian 

 Malford. By Samuel Peace Pratt, Esq., F.L.S., F.G.S. (With 

 Four Plates.) 161 



XX. A List of Testaceous Mollusca collected in the Shetland Isles 

 during a few days' residence there in the autumn of this year, and not 

 noticed by Dr. Fleming in his ' History of British Animals ' as indige- 

 nous to that country. By J. Gwyn Jeffreys, Esq., F.R, & L.S 165 



XXI. Brief and Practical Instructions for the Breeding of Salmon 

 and other Fish artificially. By Sir Francis A. Mackenzie, Bart. .,, 166 



