APPENDIX. 353 



quetral, three-sided. Truncate, appearing as if cut off. Tumid, swollen. 



Surface. — Canaliculate, with a broad central furrow. Ciliate, fringed with 

 hairs. Coreaceous, leathery. Corneous, horny. Fasciculate, with bundles of 

 long hair. Glabrous, smooth, free from hairs. Muricate, covered with small 

 sharp-pointed elevations. Pilose, with abundant rather short erect hair. Por- 

 cate, with very broad and deep grooves. Pubescent, with very fine hairs. Ru- 

 gose, with wrinkles. Scabrous, covered with broad flat scales. Striate, with 

 fine parallel impressions. Sulcate, with rather large grooves. Tesselate, 

 checkered. Tomentose, with long tangled hairs. Ventricose, greatly swollen. 

 Verrucose, warty. Villose, with long erect hairs. 



Colors. — yEneus, bronze colored. Brunneus, a pure bright brown. .Castan- 

 eus, chestnut-brown. Cinereus, dark gray. Cupreus, copper colored. Ferrens, 

 iron gray. Ferrugineus, rust red. Fuliginus, soot brown. Fulvus, light brown. 

 Fuscus, dull dark brown. Glaucus, a bright blue inclined to gray. Livid, a 

 pale yellow. Lurid, a dirty yellow inclining to brown. Luteus, clay yellow. 

 Piceus, pitchy black. Pruinose, covered with a whitish bloom. Sanguineus, 

 blood red. Testaceus, dull yellowish brown. 



FOUR PLACE LOCARITH]\I TABLE. 



The following table of logarithms is designed for rapid percentage determin- 

 ations. Relative abundance of insects should be given in per cents. The 

 use of such tables is so well understood that no explanations will be necessary. 



This table of logarithms differs from others as follows: — l:st. The use 

 of antilogarithms avoids the inaccuracy of the zero end of the table. 2nd. 

 tions. 3rd. The arrangement in columns, the spacing, and the position of the 

 difference columns, are calculated to lessen the danger of error in reading 

 The use of five digits avoids inaccuracy in the fourth place in interpola- 

 aud to contribute to rapidity of work. 



68347 64345 65321 66276 67210 68124 69020 4 



10 448 10 444 10 418 9 370 9 302 9 215 9 108 



20 548 20 542 19 514 19 464 18 394 18 305 18 197 



30 649 29 640 29 610 28 558 27 486 27 395 26 285 



40 749 39 738 39 706 37 652 37 578 36 485 35 373 



50 849 49 836 48 801 47 745 46 669 45 574 44 461 



949 933 896 839 761 664 548 



048 031 992 932 852 753 636 



147 128 087 025 943 842 723 



1 2 246 225 181 117 034 931 SIO 



123 456 789 



