114 THE CANADIAN ENTOMOLOGIST. 



Take one pint of Turpentine, and add to it about two ounces of 95% 

 alcohol, shake thoroughly, and set aside until the liquids separate (the 

 alcohol will be the upper liquid), remove the turpentine to another bottle 

 (which should be quite clean), and add to it about one pint of distilled 

 water, give another good shake, and set aside until separation takes place; 

 the turpentine will now be on top; pour it off carefully, and add about one 

 ounce of finely ground starch, and filter through paper; you will now have 

 a pure and sparkling turpentine. The alcohol used need not be vrasted, 

 as it will do for cleaning slips, brushes, etc., also for burning. 



After vour in-^^ect has become clear in the carbolic acid and turpen- 

 tine solution, remove it to a cell of proper depth, and drain off superfluous 

 solution, arrange the wings, legs, and antennae, add one or two drops of 

 Canada balsam dissolved in turpentine, and apply the cover glass, remove 

 any balsam that may have run over, and cement down the cover. If the 

 directions given are carefully followed, you will have a mount that you 

 can spend hours in examining, and one that will show better the internal 

 organs, than can be done by following any other method of preparation 

 wiih which I am acquainted. In this method of preparing insects, for 

 microscopical examination, as in a great many other processes, the longest 

 part of the process is the description. 



BOOK NOTICES. 



Canadian Spiders, by J. H. Emerton. Transactions of the Connecticut 



Academy, Vol. ix., July, 1894; 30 pp.; 4 plates. 



This interesting and valuable paper treats of spiders collected in 

 various parts of Canada, from the Rocky Mountains to the Gulf of St. 

 Lawrence. The author states at the outset that the species differ little 

 from those of the New England States. "Out of 61 species, from 

 Labrador to Manitoba, 56 species live in New England; and 27 out of 

 48 species from the Rocky Mountains." Of the latter, no less than 40 of 

 the species mentioned were collected by Mr. Bean at Laggan, and of 

 these sixteen are described as new to science. Mr. Tyrrell, of the 

 Geological Survey of Canada, supplied other species from the Rocky 

 Mountain region. Alberta Territory, and Ottawa, and other collectors 

 from the various localities mentioned in the paper. The plates illustrat- 

 ing the new species are admirably drawn by the author, the excellence 

 of whose work in scientific illustration has long been well-known and 

 iiighly appreciated. 



