1622 Journal of Applied Microscopy 



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SCBSCniPTIONS : 



One Dollar per Year. 



To foreign countries $1<25 



per Year, in advance. 



0::7'Subsc Fibers will be no- 

 tified when subscription has 

 expired. Unless renewal is 

 promptly received the JOUR- 

 NAL will be discontinued. 



Journal of 



Applied Microscopy 



and 



Laboratory Methods 



Edited by L. B. ELLIOTT. 



SEPARATES. 



One liundred separates of 

 each original paper accepted 

 are furnished the author, 

 gratis. Separates are bound 

 in special cover with title. 

 A greater number can be had 

 at cost of printing the extra 

 copies desired. 



We begin our fifth year of publication with the brightest of prospects. Our 

 editorial staff is better organized, and we have as collaborators a list which any 

 periodical might envy. There has never been so much genuine interest mani- 

 fested in the upbuilding of an American journal of methods, and we now have 

 in hand more original matter than was published during the entire year just com- 

 pleted, in addition to over fifty papers now in preparation which will appear in 

 the present volume. We therefore feel justified in promising a better journal 

 of work for workers than ever before. 



The working museum is coming more and more to be a necessity, and the 

 material which in many cases has been simply accumulated as a spectacular 

 accessory to the science department, is now being turned to practical account 

 for study and demonstration. The collection, preparation, arrangement and 

 intelligent use of museum material is a distinct branch of science teaching, in 

 which very few, comparatively, have had much systematic training. The Jour- 

 nal wishes to take up this subject, and invites those having had experience in 

 this work to contribute suggestions and descriptions of methods with photographs 



illustrating the subject treated of. 



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The use of the projection lantern for class demonstration is becoming quite 

 general and its value increasingly more apparent. Its successful employment calls 

 for the rapid and accurate use of the photo-micrographic camera, and a practi- 

 cal knowledge of lantern slide printing. The series of papers by Professor 

 Dennis, now appearing, is a beginning in the direction of a fuller knowledge of 

 the many processes and the improved apparatus applicable to this work. The 

 Journal is a " clearing house for methods," and we suggest the passing through 

 of the good ones in these lines, as there are very many needing help in this 

 direction. 



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Owing to the increased amount of contributed matter it is necessary to reduce 

 the amount of review material somewhat, and to compensate for this decrease 

 the reviews will be held even more strictly to the description of methods than 

 ever before. We have this year subscribed for practically all the foreign period- 

 icals of any consequence, and these will be in the hands of our reviewers at the 

 earliest possible moment with a view to making this service not only as complete 

 as possible but prompt as well. 



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Our mailing day is now the first day of the month. Subscribers not receiv- 

 ing their copies promptly will please notify us in order that in case the number 

 has been lost another may be sent. Please remember that subscriptions are dis- 

 continued immediately upon expiration. 



