PREFACE. Vii 



inserted the species of the rest of the world, as represented 

 in the collection, wherever I thought they could be most con- 

 veniently placed. 



The references given in the catalogue under each species 

 are ; (1) to the original description, (2) to some work where the 

 species is treated of either as regards its geographical dis- 

 tribution or its classification. In almost every case where 

 STRICKLAND has mentioned a species, even incidentally, in his 

 writings, I have given the reference ; and also the synonyms, 

 if any, under which the species was named in the collection. 

 Where, however, a species appears to me to have been wrongly 

 determined, I have not thought it expedient to quote the wrong 

 name unless the statement had been published. 



As this Catalogue has been a longer time in passing 

 through the press than I at first anticipated (it contains about 

 12000 references), several recent important works could not be 

 quoted in the earlier portion. 



In preparing the Catalogue, and in re-arranging the col- 

 lection in conformity therewith, I must gratefully acknowledge 

 the patient help which I have constantly received from 

 Mrs H. E. STRICKLAND, without whose minute and accurate 

 knowledge of almost every individual specimen, my attempts to 

 trace their history would have resulted only in failure. To Mrs 

 STRICKLAND I am also indebted for the following list, shewing 

 the sources whence the collection was derived. To this I have 

 added the approximate number of specimens to be referred to 

 each. 



It remains to be said that the collection was presented to 

 the University of Cambridge by Mrs STRICKLAND in 1867 

 under conditions which will be found in the Ordinationes 

 Academics Cantabrigiensis (ed. 1877, p. 208) ; and that the 

 chief events of STRICKLAND'S life are told in his Memoirs by 

 his father-in-law, the late Sir William Jardine, published in 

 1858, to which is added a selection from his principal scientific 

 papers. 



