cover image: Journal of the Asiatic Society of Bengal  Part II  Natural Science  1895

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Journal of the Asiatic Society of Bengal Part II Natural Science 1895

1896

3. Or in the case of dyed colours the bleaching may be duo to some action between the organic matters of the fabrics and the colouring matters under the influence of light or to a similar action accompanied by a chemical action due to the oxygen carbon dioxide moisture etc. [...] the solutions the dyed cotton and the dyed asbestos the following principal sets of experiments were made :- A. The solutions were placed in tubes stoppered merely with cotton-wool and were thou exposed freely to the action of the air and"1895.] A. Pedlor—Bleaching action of light on colouring matters. [...] The comparison of the results in B and C is intended to differentiate between the causes referred to in 1 and 2. The comparison of the results given in D and E and given in F and G is again intended to differentiate between the causes referred to in 1 and 2 and finally the results of D and E together compared with those of F and G together will enable a conclusion to be obtained with referen [...] The following general conclusions appear to follow from the above experiments Wien in conjunction with a number of others which canot be described in detail :- 1. Organic colours both in solution in water or on dyed fabrics inorganic or organic exposed freely to the action of air in the presence of the usual atmospheric conditions of moisture etc. [...] 9. The bleaching action of light in presence of air is much faciltated by the presence of moisture in contact with the colours and more particularly of evaporating water in contact with dyed fabrics.
history
Pages
168
Published in
India
SARF Document ID
sarf.120250
Segment Pages Author Actions
Notes on the Bleaching Action of light on Colouring Matters—By Alexander Pedler F.R.S. &C.
139-151 The Natural History Secretary view
Notes on and Drawing of the Animals of Various Indian Land Mollusca (Pulmonifera).—By Lieut.-Colonel H.H. Godwin-Austen F.R.S. F.Z.S. &C.
151-156 The Natural History Secretary view
Materials for a Carcinological Fauna of Indian No. 1. The Brachyura Oxyrhyucha.—By A. Alcock M.B. C.M.Z.S. Superintedent of the Indian Museum
157-291 The Natural History Secretary view
On Polarisation of Electric Rays by Double Refracting Crystals—By Prof. J.C.Bose B.A. (Cantab) B.Sc.(Lond)
291-296 The Natural History Secretary view
Description of a new Species of Oxyrhynch Crab of the Genus Parthenope—By A. Alcock M.B. C.M.Z.S. Superintendent of the Indian Museum
296-298 The Natural History Secretary view
Backmatter
i-v The Natural History Secretary view

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