CORRESPONDENCE. 



207 



And with the OHgoclase it should be Na^ O replaced by 



Ca O. 



Yours, etc., 



Arthur Madge, F.C.S. 



To the Editor of " The Journal of the Postal Microscopical Society T 

 Dear Sir, — 



I shall be glad to see expressions of opinion on the part of 

 other members, about the lines round the plates. In all scientific 

 works I have seen they are omitted. 



Yours truly, 



C. P. Coombs. 



[We do not think it desirable to enter into a discussion on this 

 subject in the pages of the Journal, but if any of our subscribers 

 have a decided preference for the plates with or without the 

 border-lines and will write to us, we shall be glad to accede to the 

 wishes of the majority. In some cases, the border-lines appear 

 necessary; Plate 17 in the present part may be taken as an 

 example. — Editor. ] 



At the moment of going to press, we have received from Mr. 

 E. Wade-Wilton, of Leeds, 7 or 8 sheets containing outline 

 sketches and short descriptions of various specimens of Polyzoa and 

 other aquatic organisms intended to accompany his weekly tubes. 

 His customers will doubtless find these sketches very useful, 

 but we should have been glad to have seen that a fittle more care 

 had been expended on their execution. 



NOTICES TO CORRES- 

 PONDENTS. 



All communications should he addressed to 



" Editor " care of Mr. A. Allen, 1, 



Camhridge Place, Bath. They must he 



accompanied by the name and address 



of the writers, hut not necessarily for 



piihlication. 



Several very interesting papers are in 



print, but are excluded from want of 



room. They will appear in our next. 



SALE COLUMN. 



Advertisements hy memhers and suhscrih- 

 ers are inserted here at the rate of Six- 



pence for 20 ivords, and Threepence 



for every additional 10 xvords or jpor- 



tion of 10. 



Microscopic Objects for Mounting. 



Fifty preparations accurately named, 



2/6. R. H. Philip, 4, Grove Street, 



Stepney, Hull. 



BOOKS RECEIVED. 



Northern Microscopist, 22, 23, 24. 

 Quekett Journal, No. 2, New Series. 

 Natural History Journal and School 

 Re])orter, up to date. 



The American Naturalist, Oct., Nov. 

 Natural History Notes, up to date. 



