268 THE AMERICAN MONTHLY [Aug 



method for enabling' the insect instantaneously to detach 

 its foothold from the object upon which it has been rest- 

 ing- and supposing the pulvillus to be hairless, and the 

 secreting- surface to be broug-ht into close connection 

 with the object, would there not be g-reat difficulty in the 

 creature at once liberating- itself ? 



Action of Light on Fungi. — M. A. Lendner records 

 (Ann. des Sci. Nat. Botan.)the result of a series of experi- 

 ments on the effect of the access and withdrawal of lig-ht 

 on a variety of fung-i, chiefly mucorini and ascomycetes, 

 grown on different media. All the mucorini examined 

 developed sporang-es under the influence of lig-ht when 

 g-rown on solid substrata ; in liquid media the results var- 

 ied with the species. In the case of the conidial forms of 

 the ascomycetes, conids were invariably formed under the 

 influence of alternate day and nig-ht; under continuous 

 light the results varied with the species. All the phenom- 

 ena of heliotropic sensitiveness in fungi appear to have 

 their source in the need for nutrition. 



NEW PUBLICATIONS. 



The Canadian Entomologist is a bright and newsy dol- 

 lar mag'azine from which we extract items occjisionally. 

 The contributors are nearly all United States people, a 

 recent number containing- eig-ht articles all from the states 

 and none from C.inada. The April number had seven U. 

 S. contributions to three Dominion. How can Canada with 

 only a few entomolog-ists maintain such a magazine ? We 

 suspect because cheap living- makes cheap cost of print- 

 ing- while money and articles come from us to support the 

 same. 



Recent Articles. — F. Chapman writes in the May Geo- 

 log-ical Magazine on the Microscopic Contents of a sample 

 of Bracklesham Clay from the Solent. 



Prof. R. Jones describes in the same number some new 

 Entomostraca from Brazil. 



