THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL 



Vol. XIII. 



JULY, 1892. 



No. 7. 



CONTENTS. 



New Desmids From New Ilamj-)- 

 shire. — I (Illustrated). — Hast- 

 ings --------- 153 



Microscopical Illiisti-ations. — 



TULMAX 155 



Impressions of the Antwerp Mi- 

 croscopical Exposition. -Ward 157 



Editorial. — Priority in Giving 

 Scientific Names. The Sci- 

 ence Meetings ------ 163 



Microscopical Apparatus. — 

 The Lane- Sear Microscope 

 Lamp (Illustrated). A Box 

 for Slides (Illustrated). A 

 Pressureless Mounting-Clip- 

 A Cheap Camera. To Ar- 

 range a Photomicrographic 

 Dark Room ------- 16^ 



Microscopical Manipulation. 

 — Collecting Terrace Dust. 167 



Biological Notes. — Circular 

 Growth of Fungus - - - - i6q 



Diatoms. -The Mobile Deposits. 169 



Bacteriology. — The Examina- 

 tion of Sputum ior Tubercle- 

 Bacilli. Biedert's Method. 

 Gabbet's Staining Process. 

 For Cover-Glass Preparations. 170 



Obituary Notices. — Dr. L. D. 

 Mcintosh. Dr. Justin R. 

 Hayes --------- 172 



Microscopical News. — Leidy's 

 Microscopes. H. L. Tolman. 

 The Key to Alga; and Desmids. 

 Prize --------- 174 



Correspondence ----- 175 



Microscopical Societies.- — 

 San Francisco ------ 175 



Notices of Books ----- 176 



New Desmids From New Hampshire. — I. 



By WM. N. HASTINGS, 



ROCHESTER, N. H. 



WITH ONE PLATE. 



Diagnoses of the following desmids have been published in a 

 local newspaper. The dates affixed give the date of such publi- 

 cation. 



Euastrum magnificum, var. crassioides, var. nov., Wolle. 

 (Plate I. fig. la, ib^ ic, x 500.) This may be most concisely de- 

 scribed as intermediate between E. magnificum (Wolle) and E. 

 crassum. In end view it is nearly like the first, but in this view 

 the intermediate lobe is rounded, not "notched." In lateral view 

 this lobe is notched, and the central inflation is seen to be most 



