10 | DEPARTMENT OF AGRICULTURE BULS. 751—1775. 
DEPARTMENT BuLuETiIn No. 770.—Moror TRANSPORTATION FOR RURAL 
_Districrs—Continued. Page.. 
Mhercentrallterminal se 20555... eee tages OTe pear orem GBM af 26: 
Business arrangements for stabilizing the business of the rural motor oper- 
BLOTS EAR Neo TARR eo arenas = ARI Sr GN Se UNE (LCE eee a 28. 
ihe standard bill of lading. 22... Sbeeiee oe oc). See ae ae ee 28. 
Insurance on loads carried by motor trucks....-........--..-.- pega 1 29° 
Temantime tae tors. Vee eG SNe ss. Appeenremes e 0 a 31 
Comelusionss. 5. Gas boa oe OOO 2 RS a SG ee perye 32: 
DEPARTMENT Buturetin No. 771.—A Strupy or THE Errect or SToRaAGE, 
HEAT, AND MoIsTURE ON PyRETHRUM: 
Tntrodare trom’. f 2). pee te) | GRR Ue eC rr I 
Methods ofitesting Sas0 2.0002... SA es a oh ee 1 
Effect of exposure to the weather and in a room........--...--.----+----- 2 
Effect of storage in sealed glass containers.....-.--.-.-------+-5-+-+-+-+--e+- 3 
Effect of soaking in hot or cold water................-.- Pe aN HRI 5S 
Piteetofexposure to dry heat.2.05.. . SMe as Peas yale a 5 
RS EDTA A ee coely GUEA UI = GUM CP a Le 6. 
Publications relating tonmsecticides. . 22482. .- 0802.52.40 ee ee ri 
DEPARTMENT BULLETIN No. 772.—THE GENERA OF GRASSES OF THE UNITED 
STATES: 
Scopejand: plan ‘of theswork: Jo. 0-2... eee sates eee oes a Nr I 
Boaceae, the crass family). 0 sic... Ree ee Ue ee eee By 
* Descriptions of the subfamilies and keys to the tribes................-.-- 6 
Descriptions of the tribes and keys to the genera. ..-.........-...-..---- 8 
Descriptions of the genera - : 06358 -,\ Pete. St hel et -y99)-)> See ee 22 
J: Bamboseae, the bamboo tribe. 2... 2.22/22... th cle 22: 
2* Westuceae, theiescue tribe... Bee... 2520.24. 2 oe 24. 
5. LLordeae; the’ barley tribe... -@2e.csscbecces. Ys idee | 87 
4.“Aveneae, the oat tribe..: 2... ee ose one cle icin Sa ie a 106. 
a Agrostideae, the timothy tribeteas) 20-24-2046. 0.0 Sel 121. 
6. Nazieae, the curly-mesquite tribe. 4.2 2c jens ks eee 165. 
7 Chloridese, thejerama tribe. . esse 95.) ee. iy on ae Se 171 
8. Phalarideae, the canary-grass tribe........-.------------------- 199 
9 Oryzeae. the rice tribe:2...... Jagan 2 es een ee ee 204 
10.,Zizanieae, the ndian-rice tribe /ss2-4. 45.8 a as ee eee 206 
11. Melinideae, the molasses-grass tribe.......-..-..-.------------+-- 212° 
12> Paniceae.the mallet tribe: - . . Best sesacs sense eee 213 
13. Andropogoneae, the sorghum tribe..........--..-.---2+2+--22-- 0 252° 
J4° Tripsaceae,’the'corn tribe... . (2222202 5-222 5 0 oS 222 eee 280 
List of new species and new MAaMes.... 22. ee - 6 - fojeepe joie ieee ee ides 288 
Tina ere pee oN Se ts a NOW aca LE 7 SARUM a a aN ab a ae 289: 
DEPARTMENT BuLuEeTIN No. 773.—CHEMICAL ANALYSES OF LOGAN BLACK- 
BERRY (LOGANBERRY) JUICES: 
The logan blackberry (lovanberry))<: Wee. 0 eee ee 1 
Wsestofithe' Locan blackberry: 22 -\-. ese Seen hy sie 2 
Manufacture of Logan blackberry juice.-.....--...-.---------- a ea a 2 
Purpose of investigation. (2000...) Te. lo ea eee eae 3. 
Preparation; of the/analytical samples. 292.) -20 20. So.o 0 ea ee 3 
MetHods/of analysis: 2 soko 5e. 0. PUM ED es oe ee a eee 4 
Resuiltsiof analyses: oi csc 2000 oo.) GUM Sk ea A 6 
Discusston\of resultsiofanmalyses::. .\... eeeeee ee seen oe cee eee eee 12: 
DEPARTMENT BULLETIN No. 774.—Lire History anp Hasits OF THE MEALY 
Pium Apuis: 
Orisin gs | 8 HE OEE eDOCS SNS) | ARMM ESOS SISOS 8 SG a 5a a 1 
Eosts and micratory habitss 2)225..2.. Pepe oeeeee eee hee tee eee 1 
d Gow AU bance Ns yeh a Uae Ee eR RE SoC Ne SNe aay AN eS SS 2 
SVAMLOMIVAIN SS Se Ba Mie as el Lo, ARR IR WL ae tap RN 3 
BIOLO FY. Ace NRE Ne NS | RRP pe Oa yas 3 
Nottural enemies: mec) 0 ee eed. 2 ee aiuare a On I coat ea Dc oe 14 
Control suggestions. so. k he 0 Mk ET RR aes 15. 
SRO OTN TE: Nag cae is: SN RNs Ura Ay Oe es OU PH TY a ML NST ATED 15 
Literature cited: a) yeee el le ius. Re US OI Ah ee 6a 16. 
