and Laboratory Methods. 1459 



Journal of The Journal has been called the 



A 1 • J 1\ yi • Clearing House for Methods, and we 



Applied Microscopy hope that it nils a place among scien- 



. , ^" n/i 1 1 tific publications such that the term may 



Laboratory Methods. be truly applicable, a clearing house 



Edited by L. B. ELLIOTT. ^^'^ methods, just as a clearing house 



for accounts, is, however, dependent 



Issued Monthly from the Publication Department „»,„„ ^,,«.^;j„ ^^,,^^^„ f^^ ;+^ .^„;v, 



of the Bausch & Lomb Optical Co., upon outside sourccs for its mam- 



ochester, . . tcnance, and without the cooperation 



SUBSCRIPTIONS: and support of its adherents must cer- 



One Dollar per Year. To Foreign Countries, $1.25 4.„- u, f„ii ^u„_(- ^f :<-o ^.,, ^^^ 



per Year, in Advance. tainly tall Short Of itS purpOSC. 



The summer months have closed 



The majority of our subscribers dislike to have their 

 files broken in case they fail to remit at the expiration and the begmnmg of anOthcr year of 

 of their paid subscription. We therefore assume that no 



interruption in the series is desired, unless notice to SChool WOrk is at hand. There is, how- 

 discontinue is sent. 



■ ever, sufficient time to look back over 

 the work of the summer and balance up our accounts before opening those 

 of the coming year. By many the vacation is taken as an opportunity to 

 do original work in some summer laboratory ; others leave their own laboratories 

 for the purpose of securing recreation and pleasure ; but teachers, wherever they 

 go, seldom forget the work that is before them, and are constantly alert for 

 methods and improvements in the study or presentation of their subject. Visits 

 to strange laboratories and contact with new minds give new and valuable sug- 

 gestions for work. These should be allowed to pass the clearing house, and 

 their helpfulness made as general as possible. 



The suggestions you have received from some other worker in your field, 

 the improvement you have made in your method of work at the summer or field 

 laboratory, may seem of little importance to you, but may, if allowed to circulate, 

 come to the hands of some who need just what you have to give. 



If, on the other hand, in your work you have met a difficulty which you have 

 been unable to solve, through the clearing house you may expect to receive an 

 answer to your question. 



No doubt there are few of our readers who would admit that they had spent 

 the entire summer without having learned something that will be of benefit to 

 them during the coming year. Would it not be well to give others an oppor- 

 tunity to profit by the advancement you have made ? 



* 



The article on Photo-micrography, by Dr. D. W. Dennis, which appeared in 

 the Department of Laboratory Photography last month, was the introduction to 

 a series of articles which the author will contribute on that subject during the 

 coming year. The series will include " Apparatus," " Illuminating the Object," 

 " Focusing for very high and very low powers with long bellows," " The 

 Negative and Positive," etc., and the author will endeavor to put into them the 

 most valuable things now known on the subject. 



