16 THE MICROSCOPE. Jan. 



THE MICROSCOPE. 



Contents for January, 1894. 



Objects Seen Under the Microscope VII. — Disc of Ophiocoma. (Illus- 

 trated) 1 



VIII.— Scalariform Ducts 3 



The Tj'phus Bacillus 3 



Microtome Knives and Their Care, by Bausch & Lomb. (Illustrated) 4 

 Photographing Certain Natural Objects Without a Camera, by Prof. 



W. A. Kellerman, Ph. D 6 



Moisture on the Cover Glass 8 



Slides for Sale 8 



Editorial. — The Microscopical Soiree 9 



Questions Answered. — Nos. 181-187, by Dr. S. G. Shanks 10 



181. Catoptric Ocular 10 



182. Koch's Petrifying Method 10 



183. Walmsley's Arrangement , 10 



184. The Study of Textile Fibres 10 



185. To Stain Muscle 11 



186. Specimens of Ham or Pork 11 



187. The Nerve Tissue for Microscopic Study 11 



Practical Suggestions. — by L. A. Willson 11 



Section Cutting 11 



Lichens 12 



Puecinia 12 



Sclerencyhma 12 



Dr Moore's Method of Staining Blood 12 



Science Gossip. — Amoeba f. 13 



Scientific. Work in Illinois 13 



Mechanical Finger 13 



Stone Under the Microscope 14 



Higher Medical Education 14 



The Newberry Fund 15 



Bacteria Deprived of Sunlight 15 



Correspondence. — White's Objects 15 



TO THOSE WHO HAVE REMITTED FOR 1894. 



We feel especially and unusually thankful to those who 

 have sent in their checks during the past five weeks. 



Like others, we are struggling with the "hard times" 

 and your promptness helps materially. We cannot write 

 personally to thank each one, but we take this means of 

 telling you how sincerely we appreciate your thought- 

 fulness. In spite of the times, which we believe will 

 change before mid-summer, we shall be able to increase 

 the number of our illustrations during the year. 



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