16 MUSEUMS. 
really good collection, properly preserved and mounted for exhibi- 
tion, can be accumulated. ‘he case of Reptiles has been revised. 
Several specimens have been re-cast and mounted, and additional 
specimens have been placed on exhibition. 
The plan adopted in the Vertebrate groups has been followed in 
the arrangement of the Mollusca. Examples of the main genera of 
each of the families have alone been placed on view, so that the 
classification of the group may be more easily grasped by the student 
without his being over-burdened by a plethora of species. The bulk 
of the collection—one of the most complete in England—has been 
relegated to a study series, meantime arranged in drawers beneath 
the exhibited series, but which will, the Director hopes, in due 
course be arranged in glass-covered, “ stopped” drawers, so as to be 
always accessible to the specialist, without loss of time to him and 
without the necessity of intruding upon the time and services of an 
assistant. 
In the carpenters’ shops, in addition to the ordinary repairs and 
fittings, twenty-two exhibition cases have been made—nineteen to 
accommodate British Bird groups with natural surroundings, and 
one double-case for British Lepidoptera for the Local Area collection, 
and two cases for African Ethnology in the Mayer Basement. All 
case fittings, many stands, platforms for the opening ceremony in 
October, as well as a large number of miscellaneous devices for the 
exhibition of specimens have also been devised and constructed. 
(6) CoNSERVATION. 
All the collections on exhibition have, so far as pressure on the 
staff has permitted, been periodically examined, dusted and kept 
free from moth or other pest. The store cabinets and tanks, 
containing specimens preserved both in fluid and dry preparations, 
have also been systematically gone over for the purpose of renewing 
the spirit or other preservative. 
The collection of British Birds placed in the cases of the Entrance 
Hall of the Calderstones House have been examined from time to 
time, cleaned, and attended to by the taxidermist. 
