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260 ' It is costing me considerable to finance the purchase of this property, and up the present I have not been able to work out any effective use for the property. I think the situation is unique. Certainly there is no similar situation in the entire town, and it is unlikely that one will ever arise in the future. Under all the peculiar circumstances which are present here, and in view of the nature of the proposed use of the property, I think this Board would be justified in granting our petition to vary the application of the Zoning By -Laws. Now I should like to introduce Mr. John A. Lunn, Vice President of Dewey & Almy Chemical Co., who will give you more details concerning the proposed labor- atory. Mr. John A. Lunn, V ce President of the Dewer & Almy Chemical Company, 37 Larch Road, Cambridge. Possibly you gentlemen know as well as I do what constitutes or comprises a research laboratory in the chemical field. During the war we developed, as a sample of what type of research we might do in Lexington, synthetic rubber. We have the only synthetic rubber plant in New England. It is to start this research that we want the laboratory. First we make small-scale experiments in glass consisting of appartus which makes up to one pint. •From this, we move to the next step which is a five -gallon sample. In the five -gallon type we have various types of stainless steel and other mat- erials. The final step os the manufacture of the 50- gallon samples. This enables us to send samples to the trade or to be used in our own department and to give us an inside to the next step - large production manufacture. To the question which you will probably ask - What about obnoxious odors? I think upon occasion many chemical laboratories will set up such an odor, but I think if I tell you that we are located in a very populated section of Cambridge and have lived in peace with our neighbors for twenty odd years, this question will be answered. Another question - are there any fire hazards in connection with the research laboratory?. of course in a laboratory there is always such a hazard .in a very small scale. We,have never had a fire or a very serious accident in our laboratory. ' I think that I might stress what Mr. Smith has already told you about the class of people who would be involved in the operation of such a laboratory. In Cambridge we