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the tile surface over considerable areas. Several leaks also 
developed in the cornices, which damaged portions of the 
interior walls, and several leaders had to be repaired. In 
the eae it was found necessary to excavate a portion 
of the floor and replace leaking water-pipes and steam- 
pipes, for which a new trench was constructed, thus making 
the pipes more accessible. One additional museum case 
was constructed. There is now need for a considerable 
number of additional museum and herbarium cases, for 
the display and preservation of important additions to 
the collections. 
Power House 1 
The installation of forced draft at power house 1, and 
the substitution of new grates in order to burn buckwheat 
coal instead of pea coal, was accomplished during the 
autumn, as recommended by engineers of the City Finance 
Department. This has resulted in the consumption of a 
greater bulk of coal at saving in cost; the enlargement of 
coal storage capacity here is necessary, because we can now 
receive not more than about 200 tons of buckwheat coal 
at any one time, and during severe weather this amount 
is consumed in about 15 days. The coal bins need to be 
about doubled in size, in order to permit deliveries of about 
400 tons at a time; this would be economical, inasmuch as 
coal delivered in ince quantities can be purchased cheaper 
than in smaller amounts, and the safety of the greenhouse 
collections must be carefully considered. It was necessary 
here to replace 117 boiler tubes, a much larger number than 
had been anticipated. In order to obtain somewhat greater 
coal storage place than we had, a shop which occupied space 
within this power house was moved into the northern 
runway of the house, by constructing a roof over a portion 
of this runway. 
Conservatory Range 1 
About one-half of the exterior roof surface of this great 
greenhouse was painted during the season, and during this 
work it was found necessary to replace a considerable 
