(319) 
dividual trees, representing 31 families and 58 genera. 45 
show labels have been made for this collection. 
Pinetum. Here there are 1,501 trees and 271 species 
and varieties, representing 3 families and 20 genera. The 
severe and unusual conditions of the past winter resulted 
in the loss of a number of species and varieties, so that the 
representation is not quite as large as heretofore. 410 show 
labels have been placed here. 
Viticetum. There are here about 50 species and va- 
rieties of climbers. 
Conservatories. The collections under glass comprise 
about 9,250 species and varieties, representing 207 families 
and 217 genera. The total number of plants in the public 
conservatories is 17,444. 
Ranger. There are here 10,696 plants, distributed as 
follows: house 1, 306; house 2, 450; house 3, 550; house 4, 
440; house 5, 1,553; house 6, 487; house 7, 939; house 8, 
768; house 9, 142; house 10, 876; house 11, 455; house 12, 
1,142; house 13, 512; house 14, 713; house 15, 1,180; 
cellar, 133. 1,506 show labels have been placed here. 
Range 2. The collections here contain 6,748 plants, dis- 
tributed as follows: house 1, 76; house 2, 152; house 3, 60; 
house 4, 1,353; house 5, 2,088; house 6, 1,672; house 7, 
1,295; runway, 52. 1,049 show labels have been made for 
this range. 
Propacatinc Houses anp Nurseries. Excluding the 
plants used for special studies by the Director-of-the 
Laboratories, there are here 9,032 plants. 833 packets of 
seeds have been received, as follows: gift, 34; purchase, 254; 
exchange, 522; collected, 23. There have also been col- 
lected on the grounds, in addition to the above, 725 packets. 
The Director-of-the-Laboratories has had the use of house 2 
and parts of other houses for his experiments and those of 
his students. The succulents, mainly cacti, have occupied 
houses 5 and 6 and partofhouser. ‘The nursery enclosure, 
which has been enlarged, and increased areas outside have 
been used by the Director-of-the-Laboratories and his 
students. 
