226 THE CANADIAN NATURALIST. 



comparisoDS are mute. "Wherever six men can be found of the 

 right sort, we would advocate the establishment of such a Club, 

 even if only three microscopes could be raised amongst them to 

 do the work — even one good instrument will do a great deal, 

 with a good set of eyes. Our plan is very simple. The Club 

 appoints a secretary, who arranges for the meetings, and suggests 

 a special subject for illustration at each. The host for the 

 evening is the president of the club ; minutes are recorded and 

 read, visitors introduced, miscellaneous business discussed, and 

 microscopic investigation proceeded with. At 10.30 P M. the 

 president announces the adjournment, the microscopes are returned 

 to their cases, and a parting cup of coffee closes the " seance." 



During the intervals of meeting the Monthly and Quarterly 

 Microscopic Journals circulate amongst the members, and afford 

 material for discussion and illustration. 



The plan may be varied for different localities, but its general 

 outline has borne good and useful fruit for nearly twenty years, 

 at least such is the writer's own experience, and should further 

 details be desired in furtherance of the establishment of similar 

 organizations, the Honorary Secretary of the Montreal Microscopic 

 Club will be glad to furnish them. 



J. B. E. 



REVIEWS AND NOTICES OF BOOKS. 



* Disinfectants and Disinfection, by Robert Angus 

 Smith, Ph.D., F.R.S., F.C.S.— Dr. Angus Smith, the author of 

 the treatise here noticed, is well known in Lancashire as an able, 

 cautious and conscientious chemist, and in connection with the 

 various chemical industries of which Manchester is the centre, he, 

 more than any other man of his day, has had ample opportunities 

 of forming opinions on this vital subject, both from an economical 

 and from a scientific point of view. These opinions are entitled 

 to the highest respe3t, although they are often more suggestive 

 than positive, and indicate rather the candid and cautious than 

 the convinced mind. The introductory chapter gives us a 



* Published by Edmonstone & Douglas, Edinburgh. 1869. 



