103 
exclusively to the results of scientific research obtained in the 
laboratories of the Missouri Botanical Garden.” The January 
number of each volume will contain the annual reports of the 
officers of the board and the director. 
According to the report of the officers of the board of the 
Missouri Botanical Garden for the year ending December 31, 
1912, the library received additions during the year 1912 amount- 
ing to $3195.95, and the herbarium additions amounting to 
$2120.10. New plant houses are being erected by the Pierson 
U-Bar Company, at a total cost of $153,000, and a residence for 
the director at a cost of about $26,000. ‘The total income of 
the garden for rgt2 amounted to $306,124.52. Nearly thirteen 
hundred species and varieties of living plants were added to the 
collections during the year, making a total of 12,451 now under 
cultivation. ‘The library contains 29,683 books, 42,099 pamphlets, 
and 110 manuscripts, with a total valuation of $118,124.71. 
— 
The work on the first section of our laboratory building has 
suffered a second serious delay of about four weeks (May 
1-June 1), this time owing to the non-receipt of the tile for 
the roof. 
During May the installation of the Ecologic Section (Section 
IV) of the Garden was begun. This section is located along the 
west side of the brook, opposite the swamp, so as to include 
habitat conditions of running water, quiet water, falls, swamp 
land, and, at the opposite side from the brook, more elevated, 
dry land, suitable for xerophytic forms. The present installation 
includes twenty-four beds, in addition to the hydrophytes in the 
swamp and brook. The planting of the xerophytes on the higher 
ground will be deferred until the grading of the adjacent region 
during the present summer. ‘The bog-habitat, which is already 
supplied by the artificial bog in the Local Flora Section, will 
not be duplicated in Section IV. 
On May 9, the curator of public instruction, Dr. Olive, gave 
an Arbor Day address at the tree planting at the Commercial 
High School, Brooklyn. ‘The occasion was of especial interest 
on account of the active participation in the exercises of the 
Junior Department of the American Association for the Planting 
