250 American Quarterly Microscopical Jojcrnal. 



and J. Beck now have an "Economic" binocular at about the same 

 price, we beHeve a few dollars cheaper, this claim will probably be dis- 

 puted. The base of the " Histological " stand appears too light, and 

 certainly is not attractive ; but this is the only homely thing about 

 any of the stands of this maker. 



The Messrs. Beck have produced a large stand which they believe 

 is superior to any other yet made, but for certain reasons it was not 

 shown at the reception. We hope to describe it for our readers in fu- 

 ture. Mr. Walmsley's exhibit was as follows : — 



Stands, &c. — 2 Large Best Binoculars ; i Small Best Binocular ; 2 

 Small Best Monoculars ; i Popular Binocular ; 4 National Binoculars ; 

 4 National Monoculars ; 4 Economic Monoculars ; i Economic Bin- 

 ocular ; I Holman's Class Microscope; i Best Dissecting Microscope ; 

 I Small Dissecting Microscope; i Histological Dissecting Microscope ; 

 I School Dissecting Microscope ; i Ether Spray Freezing Microtome ; 

 I Dr. Seller's Knife and Carrier. 



Objects. — Franklin's letter, photograph; section of leaf of Nymphea 

 odorata, double stained ; cornea of frog, gold staining ; human lung, 

 double injection ; small intestine of mouse and of rat, injected ; liver of 

 rabbit, double injection; sections of Echinus spines; Foraminifera 

 from the Levant ; Polycystina, Barbadoes, grouped ; Drapernaldia 

 plumosa ; Licniophora iii situ on Algae ; tongue of cat, injected ; Trichina 

 spiralis in muscle of rabbit, injected ; spicules of sponge ; anchors 

 and plates of Synapta, arranged ; stems of Vites vulpina, Bzgnonia, 

 Smilax, and ovary of Calla Ethiopia, double stained ; Moller's plate 

 with 100 diatoms, with name of each photographed beneath. 



With parabola. — Flower, Bishop's cap; leaf of Sphagjium. 



Opaque. — Bouquet of butterfly and beetle scales ; Dr. Watt's gold 

 crystals ; grouped diatoms ; small human intestine, injected ; crystals 

 of berberine. 



With polariscopc. — Ouinate of quinine; Amygdalin ; toe of white 

 mouse. 



The exhibit of Messrs. J. W. Queen & Co. was very attractive, and 

 embraced the following : 



Stands. — i Crouch " Large Best " binocular; i "Centennial" bin- 

 ocular, and I "Grand American," by Zentmayer; i new Jackson 

 model binocular, by Ross ; 8 " Students " binoculars, by Crouch ; 3 

 "Educational," by Crouch ; 2 " Students," by Queen. 



Objects. — Trachea of silk worm ; " the wicked flea " ; section of 

 petiole of Nuphar advena, double stained ; Trichina spiralis ; Micro- 

 photograph of Dr. Carpenter ; sections of Ivy stem, root stalk of 

 fern, human cerebellum, stained, and human scalp, injected. 



With polariscopc. — Asparagine ; chlorate of barium ; kinate (J) of 

 quinine ; scales from fern stalk, Elaphoglossum squamosum. 



By reflected light. — Wings of Sangala gloriosa, Papilio, and Morpho 



