পাতা:জীবন (কৃষ্ণপদ বিদ্যারত্ন).djvu/৪৮

[ ७१ ] foizi as 2 win off I Dr P. C. Mitchell, M. A. T. R. S., D. Sc. L. L. D জীবনবিষয়ে এনসাইক্লোপিডিয়৷ বুটানিকায় এইরূপ লিখিয়াছেন – E. Pfliiger has argued that the analogy between living protein and the compound of cyanogen are so numerous that they suggest cyanogen as the starting point of protoplasm. Cyanogen and its compounds so far as we know, arise only in a state of incandescent heat. Pfliiger suggests that such compounds arose when the surface of the earth was incandescent, and that in the long process of cooling, compounds of cyanogen end hydrocarbons passed into living protoplasm by such processes of transformation and polymerization as are familiar in the chemical groups in question, and by the acquisition of water and oxygen. His theory is in consonance with the interpretation of this structure of protoplasm as having behind it a long historical architecture and leads to the obvious conclusion that if protoplasm be constructed artificially it will be by a series of stages and that the product will be simpler than any of the existing animals or plants. Until greater knowlcdge of protoplasm and particularly of protied has been acquired, there is