58 JOURNAL OF THE [April, 



Messrs. Charles Du Vivier, George R. Du Vivier, and Mrs. 

 Maria O. Le Brun were elected Resident Members of the Society. 



The committee appointed with reference to the death of Dr. 

 Samuel Lockwood reported, and the report was accepted and 

 adopted. 



Dr. Carlton C Curtis read a paper entitled " A Contribution 

 to the History of the Formation of the Lichen Thallus." This 

 paper was illustrated by excellent camera drawings, and by ob- 

 jects under microscopes, as noted below. 



On motion the thanks of the Society were tendered Dr. Curtis 

 for the paper so presented. 



The Corresponding Secretary presented donations to the Cabi- 

 net and for distribution among the members from Mr. K. M. 

 Cunningham, of Mobile, Alabama : i. Chalk, polished, from 

 Waco, Texas, bank of Brazos River ; ?. Polished section of lime- 

 stone from Austm, Texas ; 3. Lignite from Mobile Bay, Alabama; 

 4. Complex crystalline sand from Whistler, Alabama ; 5. Green 

 glass slips for examination of the sand ; 6. Silicious bodies, 

 designated " Fhytolitharia.'' 



The donations were accompanied by the following communica- 

 tion from Mr. Cunningham, dated March 13th, 1894 : 



" I forward to the Society a few specimens illustrating some 

 studies in micro-geology, and which I believe possess some inte- 

 rest microscopically. 



" I. A prepared specimen illustrative of a portion of the creta- 

 ceous area of Texas. It is an indurated form of chalk found by 

 myself outcropping on the eastern bank of the Brazos River, at 

 Waco, Texas, the stratum underlying the town of Waco. 



"Chalk is an earthy carbonate of lime, consisting almost en- 

 tirely of microscopic shells of foraminifera. There are several 

 special forms of chalk — as the soft, friable, and very white chalk 

 of commerce, derived especially from the celebrated chalk cliffs 

 of England ; and, again, as comprised in a very extensive area of 

 the cretaceous belt of the Southern States, notably in Tennessee, 

 Mississippi, and Alabama. I have been deputized by the State 

 Geologist to investigate and report upon the chalk area of the 

 latter State. And the interesting results of an examination of 

 chalk strata from some thirty different points in Alabama, en- 

 abled me to record in the State Report on the Cretaceous Rocks- 



