(445) 



out. In manv cases the material was rearranged to better 

 advantage. Inferior specimens have been replaced by better 

 and more illustrative ones whenever this was possible. 



Newly received material, as well as older specimens which 

 exhibited any kind of insect depredation, have been poisoned 

 with carbon bisulphide, mercuric chloride or chloroform. 

 The specimens in jars have been kept as fresh in appearance 

 as possible, bv repeated cleaning of the dry material and the 

 decanting of material preserved in alcohol, or formaldehyde 

 and water solution. The practice of adding small quantities 

 of formaldehvde to the solution that has stood in the jars for 

 any length of time has been continued, and the results in all 

 cases of the specimens thus preserved have been very satis- 

 factory. 



9. Uses of the Museums. The collections comprising 

 the museums have been used in connection with the teaching 

 and development of the garden generally. Teachers, stu- 

 dents and whole schools from the city and from neighboring 

 states have used the collections to illustrate courses of study 

 and to gain general information. Especial interest has been 

 manifested in the microscope exhibit and the local flora, both 

 by teachers and students, while manufacturers, importers and 

 merchants have drawn on the economic collections for in- 

 formation. 



Herbaria. 



1. General Accessions. The total number of speci- 

 mens derived from various sources and accessioned during 

 the year amounts to 65,374. Many of these have already 

 been mounted and incorporated in the permanent collections 

 and most of the remainder will ultimately find their way 



there. 



The algal collections have been enriched by the acquisition 

 of the complete herbaria of the Rev. Mr. G. W. Perry and 

 Mr. Horace Averill, by miscellaneous exchanges, and by 

 the large collection of Dr. Howe in Florida. The fungal 

 collections have been greatly strengthened by the addition of 

 specimens from all parts of North America and Europe, and 



