XXX REPORT OF THE STATE GEOLOGIST. 



means succeeded in getting a large amount of much needed work done 

 at very little money cost to the Survey. 



Prof. Angelo Heilprin, of the Philadelphia Academy of Sciences, took 

 up the study of the fossils from the Tertiary beds which were collected 

 by Dr. Penrose and myself. He has completed the work and sent me 

 a list of his determinations. These, together with the descriptions of 

 such as were undescribed or unfigured, will appear in the Transactions 

 of that Academy at an early day. 



Dr. Ferdinand Roemer, Professor in the University at Breslau, Ger- 

 many, was the first geologist who wrote of the Texas Cretaceous, and 

 his works are still our textbooks in paleontological matters. It was 

 thought best on that account to ask his co-operation in determining and 

 describing the numerous fossils of the Cretaceous. His reply was 

 prompt and favorable, and the third shipment of material is now on the 

 way to him. 



In the trip made by Prof. Cummins and myself from Abilene to the 

 Double Mountains in September, 1889, a number of new Nautiloid forms 

 were found, and after they were gotten together in the Museum I for- 

 warded some of them to Prof. Alpheus Hyatt, of the Boston Society 

 of Natural History, for examination. They proved to be of such in- 

 terest that he has made a study of them in connection with similar 

 forms from Kansas and other places, and has furnished descriptions of 

 all of them, together with accurate engravings, for incorporation in this 

 Report. 



Prof. E. D. Cope, of the Philadelphia Academy of Sciences, who has 

 already described many of the fossils from the Permian beds of Texas, 

 has offered his services in the determination of such Vertebrate fossils 

 of that period as we may collect, and has given us such aid as he could 

 in furnishing a check list of those which he has already described. 



By the means of such co-operation I have secured for the Survey as- 

 sistance that will be of greatest value, and have had forms identified 

 which could not be done by the Survey itself in anything like a satis- 

 factory manner. 



CHEMICAL LABORATORY. 



Soon after the completion of the work required for the First Annual 

 Report, Mr. J. H. Herndon was given field work, as has been stated, in 

 East Texas. 



During Mr. Herndon's absence in the field Mr. Magnenat made all 



