44 REVIEWS. 



peculiarities in the character of the shell, the external appearance of 

 the animal, and the general size of the species, 



" Vitrininae I restrict to Vitrina, owing to the value I place on the 



external characters of the animal. Punctinae I hold good on the 



extraordinary character of the lingual dentition and buccal plate 



peculiar to the species on which this sub-family is based. The otlifsr 



groups we have not considered sufficiently to offer any opinions as to 



their relative value or position. Taking the number of plates in a row 



from five different species in each group from Pupinse upward, and 



averaging this number for each group, we have the following result : 



Limacidse including Philomycenidse, 94 



Helicinae, 73 



Helicellinse, 42 



Valloninae, 26 



Pupinse, 24 



THE LATE PROFESSOR BOOLE. 



The scientific world deplores the, to our narrow view, premature loss of one 

 whose genius, acquirements and character caused him to be held in the highest 

 estimation : Professor George Boole, of Queen's College, Cork. We copy froip 

 a local paper a tribute to his memory which many will peruse with a melaa- 

 choly interest : — 



" The intelligence of the death of Dr. Boole, Professor of Mathematics at the 

 Queen's College, Cork, which it is our melancholy duty to announce, will be 

 received with regret not alone by his friends and acquaintances, but in all the 

 learned bodies of Europe. His vast genius and profound and versatile acquire= 

 ments extended his fame beyond the limits of these islands, and made his name 

 " familiar as a household word " in all the great scientific assemblies of the 

 Continent. The extensive renown which the name of the deceased obtained, 

 was the result entirely of his vast natural ability and devoted application to 

 scientific studies. He was self-taught in the proper sense of the term. Livipg 

 secluded in Lincoln where he was born, avoiding the pleasures of society, and 

 disregarding the allurements which often prevent the cultivation of genius, the 

 solitary student occupied his time in elaborate researches into the hidden lawa 

 of natnre, which he only varied by occasioBal lonely rambles amongst the 

 verdant hedgerows, where his enquiries into her inner mysteries were exchanged 

 only for reflection^ on the beauty of her external manifestations. He neves: 

 studied under a tutor, and the enormous mass of profound and accurate infor- 

 mation with which his mind was stored, as well as the high degree of cultiva- 

 tion which his intellect exhibited, were the result of his own private and unaided 

 application. Although he attained so lofty a rank amongst the great mathema- 

 ticians of the age, he did not confine himself to the study of mathematics alone. 

 He was so well read in classics that he was better qualified for a professorship 



