"ملف XX/٥ معلومات عن النباتات في الكويت." [ظ‎‎٥‎٢] (١٦٢/١٠٦)

8
mining the amount of rosin in a mixture of rosin and shell-lac. There
fore the chemical constants of crude lac are first of all being examined,
as the success of the work depends on the accuracy of the methods of
analysis used.
Mangifera iridica, Linn .—Mango gum (1907, No. 174). No
samples, that are known to be genuine, have been found to be free from
a considerable admixture of resins.
Pinus spp.—Turpentine (1895-96, No. 36). Enquiry is in progress at
the Imperial Institute.
Pinus spp.—Rosin (1902, No. 36). Rosin has been sent to the Im
perial Institute from the same places as the turpentine.
Pwe-nyet wax (1904, No. 140). The enquiry has been completed
by the publication of the Agricultural Ledger No. 2 of 1908-09.
Rubber.
Ficus elastica, Roxb .—Assam Rubber (1901, No. 66 ). Further
attempts will be made to get information on the rubber coming down
the Koladan river.
Manihot Glaziovii, Muell.-Arg .—Ceara rubber (1908, No. 197). Some
analyses have been made at the Imperial Institute of rubber which did
not pass through my hands. The results are however recorded in my
office and they will be used if, as seems probable, a report is called for on
the potentialities of Ceara rubber in India.
Chrozophora verbascifolia, Rows.—Tanoom (1908, No. 201).
Knox, G^uU-ftt Koweit, in 1906 called my attention to this plant
as a source of oil which could be used for ghi. So poisonous are the
plants allied to Chrozophora and some of the Chrozophoras themselves
that I determined to experiment first of all with seeds which Mr. Knox
kindly supplied. I used rats and pigeons. Rats seemed to eat the seeds
gr ® edli f & n d without being inconvenienced : pigeons would not eat them
willingly, but when forced to take shelled seeds in small quantities no
m resulted That the seeds are free from poison to these animals
ppears probable ; but more experiments are wanted. Unfortunately
^ ^ b “ d -P either in chS
exammation or m these experiments. I have asked the Director of
^gnculture, Punjab, to raise for me a further supply of Seed.
S