408 NATURAL SCIENCE. December. 1896, 



[Our correspondent's suggestion, though not precisely novel, is no doubt most 

 valuable, but the publication of such an index is rather beyond the powers of such 

 a journal as ours; for the present volume, for instance, no less than i,ooo slips 

 have actually been made and kept for incorporation, but who is to pay for their publi- 

 cation and distribution? Will Mr. Hobson begin with a subscription of ;^5 ? No 

 doubt the task would be easier for a serial that published nothing but articles, and 

 that required at most 100 slips to each volume. While, therefore, we desire to help 

 the modern indexing movement, we feel obliged to leave its actual carrying out to 

 such an institution as the Concilium Bibliographicum at Zurich, or that Inter- 

 national Central Bureau of still wider scope which everyone is hoping to see firmly 

 established. But as for Mr. Hobson, we are quite ready to sell him two copies of the 

 present number, so that he may cut up the index and paste it down for himself. — 

 Ed. Nat. Sci.] 



Mr. Walter Howchin writes to us from Adelaide that we have done him an 

 injustice, on page 10 of our July number, in stating " We cannot accept the 

 Cormispira because of the chambering shown in the figure." In his description it is 

 distinctly stated that the foraminifer is a " non-septate tube," and that the appear- 

 ance of chambering is produced by the " irregular coiling of the earlier convolutions 

 of the tube." We must apologise to Mr. Howchin for having overlooked this 

 satisfactory explanation. 



We are unable to take notice of anonymous contributions, but if the gentleman 

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 him to compare the earlier and later numbers of Natural Science with more 

 exactness, when he will find that several changes we have introduced have enabled 

 us to give more matter than formerly in the corresponding space. 



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