and measurement of the pores in micromillimeters fol- 

 low, also the distribution of the Ohio species. Aid of 

 Ohio collectors is requested, to extend correct and com- 

 plete the work. 



Report of the Summer Meeting at Logan, June 

 2-3. 1893. 



About May 15th the executive Committee issued 

 a circular calling the summer meeting at Logan, Hock- 

 ing count\', June 2d and 3d, 1893. 



This call resulted in the bringing together of quite a 

 number of our members at the above place and date. 



The morning of the second was spent in visiting 

 the extensive Logan Pressed Brick and Tile \vorks and 

 the whole process of modern brick and tile manu- 

 factor^' was observed. A number of members procured 

 series of samples from the raw material to the per- 

 fected articles. 



In the afternoon a trip was taken up the river 

 where the various specialists in the part\^ collected ex- 

 tensively and found man3^ interesting things in their 

 several lines of investigation. 



In the evening, a meeting was held in the Pres- 

 byterian church. After music, furnished bj^ members of 

 the church. President Orton opened the meeting. 



Rev. Dr. Moore made a short address of welcome. 



Pres. Orton then spoke of the geological forma- 

 tions of the locality. 



Short speeches were also made b_v other members. 



After a brief intermission a business meeting was 

 called during which a committee was appointed to 

 take the necessar\^ steps for the establishment of a 

 Natural History Survey of Ohio. 



The next morning the part}^ drove to Straitville 

 and visited the coal mines. Some of the entomologists 

 and botanists were left on the way at interesting 

 points where they spent the da3' in collecting. Those 



