a 



LIST AND CONTENTS OF BULLETINS 1 TO 100. 33 



as forage; carob, or St. John's bread; iTidian fig; miscellaneous crops; 

 tobacco ; fiber plants ; perfume plants— Live stock : Cattle : horses ; donkeys ; 

 mules; camels; sheep; goats — Fores-try: General conditions; forest prod- 

 ucts; fuel; timber; cork; tan bark; alfalfa; dwarf palm. 



No. 81. Evolution of Cellular Struc-tuivs. By (). F. Cook aiul Wal- 

 ter T. Swingle. 1005. 2()' pp., 1 pL, '2 fi<is. I'rice, 5 

 cents. 



Contents : Introduction — The elimination of the simple-celled phase — 

 Alternation of structural types— Sexuality a mechanism of evolution— Two 

 types of double-celled structures — Heredity in reticular descent— Summary— 

 Explanation of plate. 



No. 82. Grass Lands of tlie South Alaska Coast. By C. V. Piper, 



Agrostologist in Charge of Forage Plant Introduction. 



1905. 38 pp., 4 pis. Price, 10 cents. 



Contents: Introduction — The location of the grass lands: Kadiak Island; 

 Alaska Tcuiusula and adjacent islands; Unalaska and the neighboring islands; 

 Kenai Pciiiiisuia; the "Vakutat plains- Important factors relating to the 

 agricultural value of the grass lands: The abundance and pernuiucucc of 

 native fodder plants; bluetop; beach rye; bluegrass ; silver-top; Siberian 

 fescue; sedges; Alaska lupine; fireweed ; food value of native Alaskan 

 grasses; cultivable forage crops; silage alone as a ration for milch cows; 

 Alaskan experience in stock raising; hogs; goats; sheep husbandry ; cattle; 

 population and available markets;" freights and transportation; dcsiral)ility 

 of south Alaska as a home; climate; garden products; fuel; ihoice of a 

 location— Land laws api)lying to Alaska : Homesteads ; application for a 

 homestead for surveyed land; inceptive rights of homestead settlers; home- 

 stead settlers on unsurveved lands; cultivation in grazing districts; home- 

 stead claims not liable for debt and not salable ; soldiers and sailors' home- 

 stead rights ; soldiers' additional homestead entry— Description of plates. 



No. 83. The Vitality of Buried Seeds. By J. W. T. Duvel, Assist- 

 ant in the Seed Laboratory. 1905. 22 pp., 3 pis., 1 fig. 

 Price, 5 cents. 

 Contents : Introduction— Kinds of seeds buried— How the seeds were 

 buried— Germination tests— Relation of depth of burial to vitality— Hard 



seeds Seeds of cultivated versus wild plants — Summary — Description of 



plates. 



* No. 84. The Seeds of the Bluegrasses. I. The Germination, Grow- 

 ing, Handling, and Adulteration of Bluegrass Seeds. 

 By Edgar Brown, Botanist in Charge of Seed Labora- 

 tory. II. Descriptions of the Seeds of the Commercial 

 Bluegrasses and Their Impurities. By F. H. Hillman, 

 Assistant Botanist, Seed Laboratory. 1905. 38 pp., 35 

 figs. Price, 5 cents. 

 Contents: I. The germination, growing, handling, ;ind adulteration of 

 bluegrass seeds : Description of commercial and hand-gathering seeds— Grades 

 and quality of commercial seeds— Adulteration— Weight per bushel— Germina- 

 tion— Growing and handling : Poa pratensis (Kentucky bluegrass) ; Poa com- 

 pressa (Canada bluegrass) ; Poa trivialis (rough-stalked meadow grass) ; Poa 

 nemoralis (wood meadow grass) ; Poa triflora (fowl meadow grass) ; Poa 

 arachnifera (Texas bluegrass) ; Poa annua (annual bluegrass) ; Poa alpina 

 (alpine meadow grass) ; Poa sudetica. TI. Descriptions of the seeds of the 

 commercial bluegrasses and their impurities: The bluegrasses: Key to the 

 seeds of the more common species of Poa as found on herbarium specimens; 

 key to commercial bluegrass seeds after preparation for market ; comparison 



101 



