PALÉOZOOLOGIE ET PALEOPHYTOLOGIE 139 



found in clay nodules, embedded in ihe shales below the better Bed Goal ; 

 identifîed by R. Kidston. 



T. Sheppard. 



Sheppard, T., Notes et comments. Goal Measure Plant Guticles. Yorkshire 

 Fossil Flora, Naturalist — 1914 ~ pp. 301-302. Antarctic Fossil Plants, 

 A Glossopteris Flora ; flowering plants — 1915 -- pp. 58-59. Mesozoic 

 Plants p. 342, The Heterangiums of the Bristol Goal Measures, Heterangium 

 Lomaxii, Polydesmic heterangium, Fossil Fungi and Fossil Bacteria, The 

 Aptian Flora of Britain, Early Angiosperms and their contemporaries 

 pp. 354-356, Fossil Fungi Phycomyciles frodinghami — 1916 — p. 245, 

 1 fig. ; Mesozoic Cycads, — 1917 -- pp. 83-84 ; Fossil Plants, Jurassic 

 plants, pp. 273-274, 2 figs ; Heterangiums of the British Coal Measures, 

 - 1918 — pp. 57-58 ; Fores ts of the Coal Age, pp. 117-118, 1 fig. Northern 

 Preglacial Floras — 1920 — pp. 147-148. 



Woodruffe-Peacock, E.-A., The Ecology of Thorne Waste. Naiuralisi 

 — 1920 — pp. 301-304, 353-356, 381-384. 



Describes the various plants etc. occurring in the peat of S. Yorkshire 

 and N. Lincolnshire. 



T. Sheppard. 



Rectification et questions. 



1 am sending you my last paper on the Racine and Gedarville Gystids 

 and Blastoicls, etc. After it was published I learned that I was mistaken 

 in my former views on Crinocystis chrysalis, and that it was an excellent 

 cystid closely related to Allocystiies Mammelli, a différent species described 

 much later. If you had seen the poor préservation of the type of Crinocystites 

 chrysalis, perhaps you might excuse my error, which now, in the présence 

 of excellent new material, is obvious. I make the necessary changes in ink. 

 I regret that thèse changes are so numerous. I shall publish my new results 

 on this species later. 



I am working on Ordovician and Silurian Cephalopods of the Nortb 

 American continent. I fincl it impossible to identify most of Gastelnau's 

 species described from material he collected himself at known localities, 

 even in the présence of abundant material from the same localities. 



Are any of the types of his species still in existence ? At présent I inquire 

 only regarding the American Cephalopods. If thèse types still exist, you will 

 do me a favor to inform me where to inquire to learn more definitely about 

 them. 



A. -F. Fœrste. 



[Prière aux savants intéressés de répondre à M. Fœrste]. 



