252 



SCIENCE 



[N. S. Vol. LII. No. 1341 



Bearing a date a montli earlier than the 

 above work by Blatchley, but received nearly 

 a month later, conies this volume, a magnifi- 

 cient treatise on the orthopterous insects of 

 ISTew England. An introduction to the litera- 

 ture of ISTew England Orthoptera is given and 

 the anatomy and biology of this group of 

 insects are discussed at some length. The 

 distribution of the species within the region 

 covered is considered and there are several 

 pages devoted to a consideraton of the eco- 

 nomic relations of the Order, including dis- 

 cussions of parasites and other enemies. Col- 

 lecting and preserving are fully treated and 

 there are keys to genera and species and 

 higher groups. Under each family are notes 

 on habits, etc., and under each species are 

 references to the more important literature on 

 the species and its synonyms. There are also 

 notes on occurrence and, usually, brief de- 

 scriptions. One hundred and thirty-two species 

 are recorded, sixteen of which are considered 

 adventive. There is no bibliography of works 

 cited. The structural details of a large pro- 

 portion of the forms treated are figured, and 

 many are more fully illustrated, some in 

 colors. There are also a number of repro- 

 duced photographs showing certain character- 

 istic habitats of Orthoptera. Three colored 

 plates and a few other illustrations are 

 original, but most of the figures are repro- 

 duced from previously published works. An 

 accented list of scientific names, a glossary, 

 and an index conclude this most excellent 

 manual. 



A. ]Sr. Caudell 



Bureau of Entomology, 

 TJ. S. Dept. op Agriculture 



SPECIAL ARTICLES 



A STAND FOR THE BARBOUR MICRODIS- 

 SECTION APPARATUS 



The following is a description of a stand 

 devised by the writer and Mr. E. H. J. 

 Newton, mechanician at Wesleyan University, 

 for use with the Barbour microdissection ap- 

 paratus. The dissecting apparatus was also 



slight modifications, in part suggested by Dr. 

 Robert Chambers, the two-needle model for- 

 merly made in the Fowler shops of the Uni- 

 versity of Kansas. 



The principal advantage of the stand as 

 previously stated by Dr. Chambers^ is that the 

 dissecting apparatus is attached to a shelf in- 

 dependent of the microscope and consequently 

 the latter may be shifted to various positions 

 with reference to the dissecting apparatus. 

 Also another microscope or binocular micro- 

 scope may readily be substituted without the 

 necessity of the assistance of a machinist to 

 construct a shelf on each microscope used. 



Fig. 1. 



The drawing here shown omits for sim- 

 plicity certain details of the dissecting ap- 

 paratus as it has been figured elsewhere.^ The 

 thumb screw on the right side which is at- 



made by Mr. Newton, who reproduced with i Chambers, R., Biological Bulletin, Vol. 34, 1918. 



