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children and teachers of the public schools for the purpose 
of aiding them in their nature study were much elaborated, 
and have been reported upon in the JournaL for June and 
for December. The privilege was extended in the autumn 
to schools from Manhattan, only those from the Bronx hav- 
ing been previously provided for, and during October and 
November the lecture hall was used for this purpose on four 
afternoons of each week to audiences of children and teachers 
ranging from 600 to 850. Over 10,000 children have been 
given instruction in these courses during the year, and the 
success of the work makes the desirability of extending it as 
far as possible very evident. ‘The demonstrations following 
each lecture increased in efficiency by the experience gained 
during the previous year. 
In order to provide teachers who were unable to attend 
these lectures with the same information, a special course 
was organized for Saturday mornings in October and Novem- 
ber, which was attended by an average of about fifty persons. 
Guides and Guide-~Books 
In order to systematize the personal guidance of visitors, 
two aids have been detailed for meeting those who may desire 
guidance, at 3 o’clock every week day afternoon at the 
museum building, and the following schedule of routes to be 
taken has been established : 
Monday: Hemlock Forest and Herbaceous Garden. 
Tuesday: Pinetum. 
Wednesday: Fruticetum and North Meadows. 
Thursday: Deciduous Arboretum, Nurseries, Propagating 
Houses. 
Friday: Public Conservatories. 
Saturday: Museums. 
This arrangement was completed late in the autumn, and 
large printed notices have been placed on the walls of the 
Museum Building, calling attention to it. I will report to you 
at a subsequent meeting upon the result of this experiment. 
A Guide to the Conservatories with photographic illustra- 
