436 Scientific Intelligence. 



country between Little Rock and Memphis, rises usually over a 

 hundred feet above the level of the country on either side of it. 

 A colored map accompanies the report. 



7. Geological Survey of Texas. — The annual appropriation for 

 the Geological Survey of Texas, made by the Legislature just 

 adjourned, is $35,000, exclusive of printing. Appropriations 

 were also made for testing the lignites, for the publication of an 

 accurate map of the State, and for the erection of a laboratory 

 building at the University of Texas, which will contain a suite of 

 rooms for the chemical department of the Survey. 



8. Geological Survey of Alabama. — Professor Eugene A. 

 Smith informs the editors that the last legislature of Alabama 

 placed the annual appropriation for the geological survey at 

 $7500, and made it continuing, i. e. till otherwise provided by 

 law. This puts the survey on a very desirable footing as to per- 

 manence as there will be no effort to bring the work to a close so 

 long as there is anything to report upon, which in the case of such 

 a state as Alabama, will be a long while. The printing, engrav- 

 ing, etc., are paid for out of another fund, which leaves the whole 

 amount of the appropriation to be devoted to the defraying of 

 the general expenses of the survey. The first work to be under- 

 taken will be the detailed mapping of the Warrior and Coosa 

 Coal Fields. 



University Ala., Feb. 23, 1891. 



9. A Bibliography of Palaeozoic Crustacea from 1698 to 1889, 

 including a list of North American species and a systematic 

 arrangement of genera ; by Anthony W. Vogdes. 1890. 117 pp. 

 (U. S. Geological Survey, Bulletin 63). — This work, which has 

 been long announced, will meet a warm welcome from students 

 of fossil Crustacea. The bibliography (Part I), extending from 

 pp. 13-78, is a compilation noteworthy for its few omissions, and 

 is unquestionably the most exhaustive analysis of the literature 

 of these fossils yet produced. The citations consist of the titles 

 in full, with a summary of the genera discussed, and frequent 

 critical notes upon genera or species. An excellent feature of 

 these citations is the more extended notice given to works of 

 early date and those accessible with difficulty. If future editions 

 would give, even at the necessity of considerable increase in size, 

 the names of species as well as genera discussed in each work 

 cited, it will prove a valuable addition. Species are the important 

 units ; generic values are constantly varying with the increase of 

 knowledge. Part II is a systematic catalogue of the North 

 American Paleozoic Tnlobita, preceded by a brief synoptical 

 table of genera and Part III is a similar list of the non-trilobitic 

 species. In these catalogues Captain Yogdes has kept himself 

 singularly free from the expression of personal convictions of 

 generic and specific values, preferring to accept the latest results 

 of reliable investigation as standards. In this respect the cata- 

 logue possesses a value not shared by previous attempts in this 

 direction which have been carried on without special familiarity 



