Annual Report] 



224 tMayS, 



library and the number of books loaned, correspond very 

 nearly with the statistics of the preceding year. 



The use of the library has been given to the members of 

 the Institute of Technology and to others, who pursuing 

 some branch of natural science, have made personal or writ- 

 ten applications for the favor. 



We have again to express our indebtedness to the officers 

 of the Smithsonian Institution, for the uniform courtesy and 

 liberality with which they have gratuitously transmitted our 

 own publications and received for us those of foreign 

 societies. 



MINERALOGY. 



The mineralogical department is indebted to Messrs. J. Car- 

 son, N. H. Bishop, A. K. Cole, W. T. Tracy and Dr. S. Kneeland, 

 for interesting specimens. Additions have also been made 

 by exchange, and a fine series, including many rare species, 

 has been acquired by purchase. The collection is reported 

 by the Committee to be in perfect condition, well arranged, 

 and every specimen properly labelled. 



GEOLOGY. 



This department is reported to be, as formerly, fully ar- 

 ranged and labelled. ~No additions of special importance 

 that need to be mentioned. 



BOTANY. 



The Herbarium in the Department of Botany has been 

 carefully examined and rearranged according to the Genera 

 Plantarum of Hooker and Bentham, so far as it has been 

 published. This is in continuation of the work begun by the 

 late Horace Mann. 



Some 25,000 specimens in all have been labelled and glued 

 to papers, and many hundred duplicates separated for ex- 

 change. The Herbarium now contains no loose plants, and is 

 wholly free from insects. The cases, however, are unsuitable 



