[56] 



EXCHANGES. 



Notices are inserted in this column 

 free of charge. They should not 

 exceed Jive lines in length, and must 

 reach us at least 3 weeks before date 

 of publication. 



Works on Geology and Mineralogy, 

 Fossils & Minerals, wanted in exchange 

 for works in General Literature, and 

 good Photographs of European and 

 American Scenery. — J. C. Christie, Old 

 Cathcart, Glasgow. 



Wanted — Fronds of Hot-house Ferns 

 vnth Sori, for Microscopic Mounting. 

 List on application. — Miss E. Jarrett, 

 Camerton Court, Bath. 



Parasite of Cat, Trichodectes suhro- 

 stratu.'i, Hsematopinus from Rat, and 

 many others, offered for similar objects. 

 Braula and Stylops of Bee, Haemato- 

 pinus of Seal and Sea-Lion especially 

 desired. Please send list to H. E. 

 Freeman, 1, Templeton Road, Finsbury 

 Park, N. 



A few good mounts of Horn and Hoof 

 Sections, Diatoms, etc., also various 

 interesting,named, unmounted Objects, 

 in exchange for well-mounted Slides. — 

 Chas. J. Watkins, Kings' Mill House, 

 Painswick. 



Beale's " How to Work with Micro- 

 scope," fourth edition, as good as new, 

 in Exchange for Beale's "Microscope 

 in Medicine ; " name edition. — Dr. 

 Coombs, Castle-Cary. 



Well-mounted Sections of the Gener- 

 ative Organs of Dog and Monkey, and 

 other anatomical objects, for good slides 

 of Foraminifera, Vegetable Tissues, 

 Algce, Fungi, etc. — Wm. Narramore, 

 37, Flaxman Street, Liverpool. 



I shall be happy to exchange lists of 

 Duplicates with any member ; objects 

 chiefly simple vegetable. -G. B. Mundy, 

 Warminster, Wilts. 



Wanted, during the summer, speci- 

 mens of the less common Diptera, 

 freshly killed in spirit, in exchange for 

 good botanical and entomological slides. 

 —J. H. G., 15, Prior-Park Buildings, 

 Bath. 



SALE COLUMN. 



Advertisements by Members and 

 Subscribers are inserted here at the 

 rate o/ Sixpence /or 20 words, and 

 Threepence for every additional 



10 words, or portions of 10. 



Dealers' and Trade Advertise- 

 ments ore inserted only on the cover, 

 and at special rates. 



All Advertisements should be sent 

 to the Editor, 1, Cambridge Place, 

 Bath, at least 3 weeks before the 

 date of publication. 



Microscopic Objects for Mounting. 

 Fifty preparations, accurately named, 

 2/6.— R. Philip, 4, Grove Street, Step- 

 ney, Hull. 



For Sale, or Exchange for Microscopic 

 SHdes. Natural History Works, etc., a 

 fine-toned Violin, in capital condition, 

 with case for same, etc.— J. E. Priestly, 

 Abbey House School, Tewkesbury. 



Wa^nted— Journal of the Royal Micro- 

 scopical Society, V^ol. I., 1878 ; Know- 

 ledge, Nos. 1 and 2, (November 11 and 

 18, 1881. )-A. Allen, 1, Cambridge 

 Place, Bath. 



NOTICES TO CORRES- 

 PONDENTS. 



All communications should be 

 addressed to " Editor, '^ care of 

 Mr. A. Allen, 1, Cambridge Place, 

 Bath. They must be accompanied 

 by the name and address of the 

 writers, but not necessarily for pub- 

 lication. 



G. D. — Thanks for your interesting 

 " Ramble ; " no room for it in present 

 issue. 



J. S. — Your short paper on Carboni- 

 ferous Holothurite in our next. 



T. P. — The palmers from you shall 

 receive our careful consideration. 



W. H. — One of your most interesting 

 papers will ap]:)ear in our next. 



G. B. M. — Thanks for your letter ; 

 we fear your suggestion will interfere 

 with the efficient working of the Jour- 

 nal. 



F. M. — Early attention shall be given 

 to your paper ; it will need some little 

 revision . 



Dr. C. — "Section Cutting" in our 

 next. 



Sigma. — The contents of your paper 

 not very suitable. 



