(443 ) 



with a view of strengthening the already installed exhibits of 

 the various plant groups. 



(3) Local flora. The popularity of this collection led us 

 to make it as complete as possible at an early date. But as 

 yet we have been unable to install the fungi and most of the 

 algae. Many specimens of these groups have been selected 

 and laid aside in anticipation of the arrival of the additional 

 stands of swinging frames, which we hope to be able to furnish 

 with specimens as soon as they are formally accepted for the 

 institution. 



(c) Microscope exhibit. Early in the year this exhibit 

 was completely renovated. The experience of a year or two 

 indicated the necessity of several changes from the original 

 plan, consequently some changes were made in the glass 

 covering each instrument and a device to keep the instrument 

 in stable focus was added. Since these improvements were 

 incorporated little or no interference from the visiting public 

 has been experienced : a very satisfactory condition, as this 

 exhibit is the most exposed of any in the building. 



6. Fossil Plant Museum. Work according to definite 

 plans was begun early in the year on the development of the 

 fossil plant museum and permanent installation has been 

 effected in the Jura-Trias, Cretaceous and Tertiary table- 

 cases and in the Cretaceous, Tertiary and early Paleozoic 

 wall-cases. In the table-cases all specimens have been pro- 

 vided with uniform exhibition blocks, and methods for dis- 

 playing and labeling specimens in the wall-cases to the best 

 advantage are being tried. 



Most of the specimens selected for display have been sub- 

 jected to careful trimming and developing. Systematic ex- 

 amination of the collections from different localities has been 

 carried on and each individual specimen critically examined 

 and compared with published descriptions or figures, in order to 

 identify any type-specimens. A number of these have been 

 found and marked in the usual manner, by a red star. The 

 examination of the Tertiary, Jura-Trias and Cretaceous 

 material has been completed. 



