424 ANNALS OF THE CARNEGIE MUSEUM. 
Dr. J. E. Cox and Mr. John Brazier, both of Sidney, Australia, are 
represented by a few letters. Mr. Brazier sent a number of Partulas to 
Dr. Hartman, as he had earlier to Pease. Unfortunately, his records 
of localities are not always beyond doubt. Dr. Cox sent the whole of 
his Partulas to Dr. Hartman for examination, and permitted him to 
retain some of them. In the correspondence there are two sheets of 
memoranda on Partula, by Dr. Cox, written about 1882 ; some of the 
notes are important. Dr. Cox exchanged shells with Mr. Garrett and 
Mr. Layard ; his earlier correspondence with Dr, Hartman was carried 
on through Garrett, who forwarded exchanges. 
When Dr. Hartman began his special study of Partula, about 1877, 
the genus was in a condition of almost hopeless confusion. _Cuming’s 
species, described by Pfeiffer and others, were assigned to islands often 
thousands of miles from their true habitats, and in some cases it really 
seemed as if the errors were intentional. , Pease was generally correct 
in his discrimination of species and varieties, but very careless about 
localities; many of his MS. names were supposed to indicate valid 
species, though he had never intended them to be more than provisional 
or the marks of varieties. Carpenter, who examined a series of the 
Pease duplicates, referred them to other species, and almost always 
erroneously. Scores of varieties had been described as species ; many 
species were regarded as varieties; hybrids and decorticated shells 
were described as species; known species were erroneously recorded 
from different islands, and described as new by naturalists who re- 
garded the habitat as a sufficient proof of validity. Even reference to 
type specimens was not always conclusive ; in more than one instance 
the original type had been replaced by a shell of another species. 
Dr. Hartman’s writings on the genus Partula were published at in- 
tervals, from 1881 to 1893, and embrace the following papers : 
Description of a Partula, supposed to be new, from the Island of 
Moorea. Proc. Acad. Nat. Sci., Phila., p. 229, 1880. 
A catalogue of the Genus Partula Fér, (printed for private distribu- 
tion). West Chester, 1881. 
Observations on the species of the Genus Partula Feér., with a Brb- 
liographical Catalogue of all the species. Bull. Mus. Comp. Zodl., 
IX, No.-5, pp. 171—To90; 2S32- 
Observations on the duplicates of the Genus Partula Fér. contained 
in the Museum of Comparative Zoblogy, Cambridge, Mass., formerly 
