30 Mr. R. Etheridge on Carboniferous Polyzoa. 



thing may be found in it worthy of imitation, however much 

 may be considered faulty or imperfect. What is desired by 

 naturalists I have taken as my text in the first part of this 

 paper — " a uniform method of registration ;" and that is what 

 / desire, however far short of perfection my own plan may 

 be considered*. 



In conclusion, I wish especially to thank Prof. Newton for 

 his ever ready and obliging communications in this connexion, 

 and I have also to acknowledge with thanks letters from the 

 following gentlemen, in answer to inquiries made regarding 

 the distribution of the birds of Northern Europe, viz. to Herr 

 A. G. Nordvi of Vadso, Dr. Meves of Stockholm, Prof. A. J. 

 Friis and Herr R. Collett of Christiania, and to Prof. 

 Palmen of Helsingfors. To tlie courtesy of the two latter 

 gentlemen I am greatly indebted for much useful information 

 bearing upon my subject, as well as for copies of several books 

 and papers upon the birds of Finland and Norway. I need 

 scarcely add that I shall be most grateful for any assistance 

 these or other naturalists will aiford me in my subject in the 

 future. 



[To be concluded with Part III.] 



Postscript. 



Phylloscopus borealtSy Bias. No. 115 in Table. 



Dr. Meves informs me {in lit.) that this interesting species 



has been found last summer (1876) in Northern Onega, and 



also in the Kola peninsula, by the collectors employed by Lieut. 



Sandeberg. 



Erratusi in Part I. 

 Page 285. Transpose the names Plectrophanes lapponicus (L.) and Plec- 

 trophanes nivalis (L.), Nos. 35 and 36. The records applied to the former 

 in both Tables belong to the latter, and vice versa. 



II. — Notes on Carboniferous Polyzoa. 

 By R. Etheridge, jun., F.G.S. 



[Plate II. A.] 



A LARGE collection of Carboniferous Polyzoa has lately been 

 made by Mr. James Bennie for the Geological Survey of 

 Scotland, from Mid and East Lothian. From my notes on 

 this collection I extract the following descriptions. 



• For the guidance of those, if such there may be, who approve of 

 this method, I may mention here that the minor details of work, such 

 as collecting the records and tabulating them for use, will be found in 

 a paper read by me before the Glasgow Natural-History Society, and 

 which, I understand, will shortly appear in their Proceedings for Session 

 1876-77, entitled " On uniformity of Method in recordingNatural-History 

 Observations, especially as regards Distribution and Migration," &c. 



