FIELD AND FOREST. 83 



Going to Coal Creek, a few miles from Knoxville, we see Agave 

 Virginica, Pancratium fotqtum, Silphium compositum, Frangula Caro- 

 linensis, Helianthus microcephalics, Desmodium ciliare and sessilifolium, 

 Pycnanthcmum Tullia and Sehrankia angustata. 



In addition to these, Dr. Gattinger has collected, among other spe- 

 cies, that interesting native of the Nashville hills, Alyssum Lescurii, 

 Arenaria patula and diffusa, Leavenworthia Michauxii, Lechea tenui- 

 folia, Malvastrum angustum, Callirhoe alcceoides, Petalostetnon car- 

 neus and the rare foliosus, Astragalus Tenneseensis, Cladrastis tincto- 

 ria, Psordlea subacaulis, Oeiiothera triloba, Gleditschia monosperma, 

 Chaerophyllum Teinturieri, Stuartia pentagyna, Spigelia Marilandica, 

 Valerianella patellaria, Grindelia lanceolata, Aster paludosus, Helio- 

 tropium tenellum, Nemophila microcalyx, Sabbatia brachiata, Gonolo- 

 bus suberosus, Iris cuprea, Allium striatum, Polypodium incanum, As- 

 plenium Ruta-muraria, Pellcea Alabamensis, and Bryonia Boykinii. 



It will be seen by every botanist that this is a very interesting list> 

 and the region very inviting. 



We received many courtesies from the citizens, and were specially 

 indebted to Col. J. B. Killebrew, of Nashville, Commissioner of Agri- 

 culture, Statistics and Mines, who is doing a great deal in developing 

 the resources of the State, and Prof. Hunter Nicholson, of the Agri- 

 cultural College, at Knoxville, 



J. W. Chickering, Jr. 



Setting Blocks for Lepidoptera. 



The following notes, coming more properly under the heat of "good 

 words," are sent for the benefit of new beginners, as to old collectors 

 the remarks may seem trifling. Suggestions, however, upon the ques- 

 tions of blocks, and setting, are asked me more frequently than how 

 to take insects, as any school-boy can take butterflies, but few know 

 what to do with them after capture. 



In making blocks the first care is to have them all of the same thick- 

 ness ; I use one-and-a-quarter inch white pine. Cut your blocks in 

 sizes from one to eight inches square, level them from the outside 

 edge to the middle, a quarter-of an-inch, make a grove down the cen- 

 tre, a trifle wider than the body of the insect, and deep enough to 



