CIRCULARS, SECOND SERIES. BS 
No. 44. The periodical cicada in 1902. By W. D. Hunter. pp. 4, figs. 2. March 
13, 1902. Out of print. 
No. 45. A new nomenclature for the broods of the periodical cicada. By C. L. 
Marlatt. pp. 8 May 1, 1902. Out of print. 
No. 46. Hydrocyanic-acid gas against household insects. By L. O. Howard. 
pp. 6. June 22, 1902. Out of print. 
Same, revised edition. pp. 7. Issued February 20, 1907. Revised by GC. L. 
Marlatt, Entomologist and acting chief in absence of chief. 
No. 47. The bedbug (Cimex lectularius Linn.). By C. L. Marlatt. pp. 8, figs. 3. 
June 15, 1902. Out of print. 
Same, revised edition. pp. 8, figs. 3. Issued February 26, 1907. 
No. 48. The house centipede (Scutigera forceps Raf.).. By C. L. Marlatt. pp. 4, 
figs. 2. June 10, 1902. 
No. 49. The silver fish (Lepisma saccharina Linn.). By C. L. Marlatt. pp. 4, 
figs. 2. June 20, 1902. 
No. 50. The white ant (V'ermes flavipes Koll.). By GC. L. Marlatt. pp. 8, figs. 4. 
June 30, 1902. Out of print. 
Same, revised edition. pp. S, figs. 4. Issued Jannary 27, 1908. 
No. 51. Cockroaches. By C. L. Marlatt. pp. 15, figs. 5. June 238, 1902. 
No. 52. The lime, sulphur, and salt wash. By C. L. Marlatt. pp. 8. February 
20, 1903. Out of print. 
Same, second edition. March 18, 1904. 
No. 58. The yellow-winged locust (Camnula pellucida Scudd.). By C. B. Simp- 
Sont pp: 3, fig. J. May 12. 1903: 
No. 54. The peach-tree borer (Sannina exitiosa Say). By C. L. Marlatt. pp. 
6, fig. 1. October 19, 1903. 
No. 55. Powder-post injury to seasoned wood products. By A. D. Hopkins. pp. 
5, fig. 1. November 20, 1908. 
No. 56. The most important step in the cultural system of controlling the boll 
weevil. By W. D. Hunter. pp. 7. October 10, 1904. 
No. 57. The greenhouse white fly (Aleyrodes vaporariorum Westw.). By A. W. 
Morrill. pp. 9, fig. 1. -February 15, 1905. 
No. 58. Report on the gypsy moth and the brown-tail moth, July, 1904. By C. L. 
Marlatt. pp. 12, pl. 1, map 1. Mareh 21, 1905. Out of print. 
No. 59. The corn root-worms. By F. H. Chittenden. pp. 8, figs. 3. March 23, 
_ 1905. 
No. 60. The imported cabbage worm (Pontia rape Linn.). By F. H. Chitten- 
den. pp. 8, figs. 6. April 28, 1905. 
No. 61. Black check in western hemlock. By H. E. Burke. pp. 10, figs. 5. May 
24, 1905. 
No. 62. The cabbage hair-worm. By F. H. Chittenden. pp. 6, fig. 1. May 17, 
1905. Out of print. 
No. 63. Root-maggots and how to control them. By F. H. Chittenden. pp. 7, 
figs. 5. June 6, 1905. Out of print. 
Same, second edition. pp. 7, figs. 5. February 12, 1906. Out of print. 
No. 64. The cottony maple scale (Pulvinaria innumerabilis Rathvon). By J. G. 
Sanders. pp. 6, figs. 4. September 7, 1905. 
No. 65. The cotton red spider (Tetranychus gloveri Bks.). By E. 8S. G. Titus. 
pp. 5, figs. 2. October 30, 1905. 
No. 66. The joint-worm (/sosoma tritici Fitch). By F. M. Webster. pp. 5, 
figs. 5. October 20, 1905. 
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