Licence: Public Domain Mark
Credit: Souvenir. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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![fluid is non-living. Dr. Williams makes his interpretation of what he sees, and Heitzmann makes a different interpretation. What will solder them together? This, I presume, is the periphery of the rod or prism that grows out of the ameloblast. Now, there is a calcific tendency in the protoplasm that loves aggregation, and the organiz- ing presence in the animal economy consolidates the calcigerous struc- ture, lining this impoverished portion that forms the periphery of the organ that is called inorganic, and that I call calco-globine. My brother said it was doubtful whether it was organic or not. It is so intimately combined with the animal elements that it cannot be dis- charged, even with hydrochloric acid. That is the increment of energy which awakens those beautiful six-sided prisms that we call the enamel-rods, and that remain perpetual in the enamel, and he leaves that out in the drawing. And now. Mr. President and fellow-members and invited guests, we should be profoundly thankful for this unprecedented opportunity for comparison of views in the interpretation of microscopical present- ments of the steps in formation, nutrition, and exercise of the factors of function in granules, molecules, cox-puscles, organs, and systems, which make up the sum of our lives as individuals and as members of the human race. And in conclusion let me say that to Drs. Carr, Northrop, Francis, and Walker, who arranged this pleasant and profit- able entertainment, the credit is due for its unprecedented success. Dr. W.W.Walker. In addition to the regular papers and discussions, the committee has made arrangements for a microscopical exhibit. Notice has been sent to all who were to take part in the discussion to bring slides to demonstrate the points at issue. Mr. J. Grunow, the well known optical instrument maker, of West Thirty-ninth street, ha- kindlj-sentupforouruse microscopes and lenses, including his new one-1 welfth oil im. For his courtesy we desire to express the thanks of the committee, and as well, I am sure, of all who are in attendance. Opportunity will now be given to those who have come prepared to present their slides. There has also been prepared up stairs a colla- tion, to which all are invited. [Dr. Sudduth spent an hour and a half exhibiting slides eover- ing all the ground gone over in the papers read by Dr. Williams and himself. The slides shown included some which had been sent to Dr. Williams by Dr. W. D. .Miller, of Berlin, showing artificial decay produced by the action of micro-organisms; and also some mounted by the exhibitorj showing tubuli distended and in some instances pushed aside by the growth of fungi. The exhibit was witnessed by a large proportion of those in attendance, who seemed to be deeply interested in examining the numerous slides submitted tor their inspection.] B. 0. Nash, D.D.S., Secretary.](https://iiif.wellcomecollection.org/image/b21230237_0079.jp2/full/800%2C/0/default.jpg)
