result, many seeds of tropical plants were sent from Singapore 
to other Gardens, and we obtained seeds for experiment in Singa- 
pore in exchange. 
In addition to experimental Introduction of exotic 
plants, many Malayan plants were collected from all parts the 
Peninsula and grown in the Gardens; these are most valuable in 
botanical studies* 
The work on orchids has been mentioned above. Its 
object is to produce a greater variety of good garden orchids 
which are free-flowering in the uniform Malayan climate; formerly 
few such orchids existed, but some good new ones have already 
been produced, and these are being propagated. It la hoped that 
many more will follow, from among the thousands of seedlings now 
being raised. 
Indexes and Plana of Gardens . Prom 1925 every new intro- 
duction of seeds or plants was given a serial number, and by means 
of the aluminium embossing press all plants received a permanent 
label with that number. An index card for each introduction was 
also prepared, and from 1926 a card index of all woody plants 
(trees, shrubs, palms) In the Gardens was made; also a series of 
books were kept for the various areas of the Gardens (A to 2), in 
which new plantings were entered. In 1939—1940 this scheme was 
developed further by the preparation of plans of all areas in the 
Gardens, upon which trees etc. are entered. The checking and exten- 
sion of these plans is still in progress. Labelling of plants in 
the Gardens is done either with hand-painted labels, or with alumi- 
nium labels made in the multiple embossing press (since 1929). 
Principal Changes in the Gardens since 1919 . Lawn Z 
(behind the Director’s house) was cleared of belukar in 1919 and 
planting begun, chiefly with trees moved from the Kconfxnic Garden. 
OtJier trees were added later. A path through this area was made 
in 1923. 
The Cluny lake, formerly adjacent to Cluny and Tyersall 
roads in the north of the Gardens, was filled in 1922-23. The 
small ponds at the foot of the main Gardens lake were also filled. 
The shade rockeries at the head of the lake were mode in 
I915-I9I0, but had to be modified extensively in 1921 owing to the 
drainage of lakes in Tyersall and lowering of the water level. 
The steps and small foot-path at the foot of the lake were made in 
1938. i 
The flower beds round the Bandstand Hill were re-arranged 
in 1928, the sun-dial terrace made in 1929, the bandstand erected 
in 1930, the pergola in 1938 and the crazy -paved area made in the 
same year; the low brick wail sej^arating two terraces was made in 
1937* The steps leading to the plant house were improved and the 
ornamental pots made in 1932 and the lotus tanks made. A glass- 
covered area for succulent plants was made in the plant house in 
1937. 
The Sun Rockery on the path heading to the Director’s 
House was made in 1922. As it is not suitable for many smaller 
plants, an additional sun rockery for these was begun not far from 
the office in 1940. 
I 
A survey of bamboos in the Gardens was begun in 1933, snd 
new bamboos collected subse(iuent to that time were mostly planted 
in the north of the Gardens, near the Tyersall Road boundary. 
The planting of the smaller Conifers near the office began 
In 1932. The Pinus Merkusii in this group was planted in 1935* 
