20 
On examination of fruiting specimens it appeared that the species 
said to be Taraktogenos kurzii differed somewhat from the upper 
Chindwin species. The fruits were distinctly ridged, especially to- 
ward the apex, a character absent in the specimens from Burma; 
they were also darker in color. Unfortunately, no flowering trees 
could be found, and some of the trees had semimature fruits but no 
ripe fruits whatever. It was again stated that July and August 
were the fruiting season. As is not the case in Upper Burma, the 
trees here (which may be Taraktogenos kurzii, but concerning which 
there still remains some doubt, owing to the characters mentioned 
above and the absence of flowers) grew as scattered individuals save 
in one locality, where they covered an area of perhaps half an acre 
and formed about 80 per cent of the tree growth. The plant asso- 
ciates of this doubtfully determined Taraktogenos kurzii in the 
Dibru forest are mainly Artocarpus chaplasha, a valuable timber tree 
which seeds in August, Dillenia indica, Cinnamomum sp., Ptero- 
spermum acerifolium, Myristica sp., Ficus sp., Ficus elastica, Elaeo- 
carpus sp., aroids, a species of Calamus which climbs over the trees, 
etc. The tree here is known as lemtam, and the Burmese vernacular 
name kalaw is unknown in Assam. Gynocardia odorata, which is 
also known as lemtam in Assam, is found in company with this 
species of Taraktogenos in the Dibru forest, but it is rather scarce. 
No seeds were obtained of the supposed Taraktogenos kurzii of the 
Assam Dibru forest, but seedlings from this forest, which arrived in 
good condition in Hawaii, were left in charge of Dr. H. L. Lyon, 
collaborator of the Office of Foreign Seed and Plant Introduction 
of the Bureau of Plant Industry. 
Besides occurring in the Dibru forests, Taraktogenos kurzii is said 
to grow near Bargpathar on the Dhansiri River in the district of 
Sibsagar, a subdivision of Golaghat ; also at Jamugri in the same sub- 
division, but on the Doyang River, and all over the district of Mow- 
gong near Silghat, Assam. Shorea robusta, the famous sal tree of 
India and Assam, is very common in the Lakhimpur district of north- 
ern Assam and is an indicator of the absence of Taraktogenos kurzii; 
wherever the latter occurs the former is absent, and vice versa. 
On the writer's return to Calcutta, he stopped at Chittagong in 
Lower Bengal, whither he was directed by the manager of Glen & Co., 
dealers in chaulmoogra oil in Calcutta- Chaulmoogra oil is here 
manufactured by a Bengal firm, Prasana Kumar Sen. The writer, 
in company with Dr. E. Muir, visited Mr. Sen's establishment and 
examined the seeds from which he obtains chaulmoogra oil. They 
were indeed those of Taraktogenos kurzii. The extraction of chaul- 
moogra oil as carried on at Mr. Sen's establishment is a very simple 
process (PI. XI). The seeds when they arrive from the forests are 
