120 ESTABLISHMENT OF A NATIONAL BOTANIC GARDEN. 



work with children, tree planting, and Arbor Day. If an illustrated 

 lecture is desired, the lantern and operator must be provided by the 

 school, but slides will be furnished by the botanic garden. Principals 

 may address the director for appointments. 



(b) /School classes at the garden. — Schools not provided with lan- 

 terns may arrange for their classes, accompanied by their teacher, to 

 come to the botanic garden for such talks as are mentioned above. 

 At present not more than TO children can be accommodated at any 

 one time. 



The garden equipment, including greenhouse, plant material, lec- 

 ture room, lantern, and slides, is at the disposal of teachers who desire 

 to instruct their own classes at the garden. This must be arranged 

 by appointment with the director, so that such work will' not conflict 

 with regular classes and lectures. 



The principal of any secondary school in Brooklyn may arrange 

 also for a series of 10 lessons on plant culture to be given during the 

 fall to a class. These lessons will be worked out for the most part in 

 the greenhouse. Such a course must be arranged for in advance, and 

 the class must be accompanied by its teacher. 



(c) Consultations. — Conferences may be arranged by teachers and 

 principals for discussion of problems in connection with gardening 

 and nature study. Monday and Saturday afternoons are usually 

 available for this purpose. Appointments must be made in advance. 



\il) Study and loan material. — On request, the garden will en- 

 deavor to provide living seedlings or plant parts for study, to the ex- 

 tent of our present limited facilities. Teachers may arrange to 

 have various physiological experiments or demonstrations conducted 

 at the garden. Petri dishes, ready for exposure, will also be loaned 

 on request of teachers. Schools must arrange to call for study or loan 

 material, and must return the loan material promptly in good condi- 

 tion. 



DOCENTRY. 



Classes, and other parties of several persons, wishing to view the 

 plantations, under guidance, may arrange with the curator of public 

 instruction for appointments with a docent to conduct them through 

 the garden. 



THE HERBARIUM. 



The garden herbarium consists at present of about 40.000 speci- 

 mens, including phanerogams, ferns, mosses, liverworts, lichens, 

 parasitic and other fungi, algas, and myxomycets. This collection 

 may be consulted by those interested, and specimens submitted will 

 be gladly identified. 



THE LIBRARY. 



The rapidly growing library of the garden occupies temporary 

 quarters on the main floor of the laboratory building. This is not a 

 circulating library, but is open for consultation without charge to 

 all persons, from 9 a. m. until 5 p. m. Over 60 current periodicals 

 devoted to botany and related subjects are regularly received. 



