339 



feet square, and 8 feet 6 inches deep, containing about 78,000 cubic feet, 

 consisting of one entire mass of solid concrete, covering the whole space, 

 and pressing equallj^ upon its gravel bed, with which it in some measure 

 necessarily amalgamates ; and that in view of these facts, and of all the 

 skill, care, and foresight that have been exercised in founding this, the 

 greatest tower of the world, we need be under no apprehension of "the 

 possibility of future disaster" to the structure. 



Mr. E. K. Price, as Chairman of the Committee on the 

 application of one-half of the income from the Michaux 

 Legacy to botanical purposes, made a report on the Michaux 

 and Cresson Trusts. 



On motion it was : Resolved, that five hundred extra 

 copies of the Report be printed for circulation and future use 

 in the execution of the Trusts of the Cresson and Michaux 

 Trusts. 



Mr. Lesley read a paragraph from a recent private letter 

 of M. Leo Lesquereux respecting new discoveries in the 

 Carboniferous Flora of North America. 



Mr. Lesley communicated a collection of Oil-well records 

 made by Mr. J. F. Carll, Assistant on the Geological Survey 

 of Pennsylvania, in charge of the survey in the Oil Regions 

 of the State, with remarks on their value to men abroad and 

 at home. 



Professor Chase called attention to the Swedish statistics 

 of color blindness. 



Mr. Thompson described the investigations carried on at 

 the shops at Altoona by the Pennsylvania Railroad Com- 

 pany, into the values of various signal lights and their pos- 

 sible combinations ; and stated that in the experiences of 

 that company not a single instance had been found among the 

 employes of such color blindness as practically incapacitates 

 an employe from using the series of four colors, white, green, 

 red, and blue, to which signal lights are confined. 



The report of the Finance Committee was read. 



The annual appropriations for the ensuing year recom- 

 mended in the report were, on motion, ordered. 



Pending nominations, Nos. 809 to 822, and new nomina- 

 tions, 823 to 829, were read. 



And the meeting was adjourned. 



