12 



BULLETIN 1328, U. S. DEPARTMENT OF AGRICULTURE 



Table 1. — A seasonal survey of some observations for entire days 

















* 





Temperature 



n shade dur- 



Date 



Total 

 exits 



Total 

 returns 



Loss 



Gain 



Per 



cent 



returns 



are of 



Loss or 



gain in 



weight 



of 



age 

 load per 

 return- 



Per 



cent of 



possible 



sun- 



ing period of observations 





















exits 



hive ! 



bee 2 



shine 



Minimum 



Maximum 

















Milli- 

























Grams 



grams 





°C. 



°F. 



°C. 



°F. 



Apr. 10— 



5,479 



6,410 





931 



116. 99 







100 



19.5 



67.10 



31 



87.80 



11— 



5,609 

 6,052 

 5,150 

 5,825 

 9,757 

 8,318 

 6,086 

 17 

 2,465 



5,289 

 6,183 

 4,672 

 5,662 

 8,537 

 7,940 

 5,943 

 15 

 2,489 



320 



478 

 163 

 1,220 

 378 

 143 

 2 



131 

 24 



94.29 

 102. 16 

 90.72 

 97.20 

 87.50 

 95.46 

 97.65 

 88.24 

 100. 97 







63 

 85 



7 



91 



100 



5 



10 







100 



19.5 

 13.25 

 15 

 14.5 



7.25 

 14 

 15.5 



7.5 



7 



67.10 



55.85 



59 



58.10 



45.05 



57.20 



59.90 



45.50 



44.60 



27 



20.5 



19 



17.5 



22 



21 



21 



10 



15 



80.60 



12..- 







58.90 



14— 







66.20 



15..- 







63.50 



16... 







71.60 



17— 







69.80 



18— 







69.80 



19... 







50 



20... 



-190 





59 



21— 



34 

 7,439 

 2,262 



30 

 6,822 

 1,955 



4 

 617 

 307 





88.24 

 91.71 

 86.43 







18 

 100 



78 



3 



0.5 

 4 



37.40 

 32.90 

 39.20 



10 

 14 

 14 



50 



22— 







57.20 



23— 



-180 





57.20 



24— 



11, 288 



10, 847 



441 





96.09 



-410 





100 



1.5 



34.70 



17 



62.60 



27... 



12, 501 



10, 557 



1,944 





84.44 



-480 





41 



13 



55.40 



30 



68 



28— 



14,340 



12, 005 



2,335 





83.72 



-370 





52 



7 



44.60 



17 



63.60 



29— 



15, 964 



20, 404 





4,440 



127. 81 



-430 





95 



3 



37.40 



19 



66.20 



30— 



20, 023 



16, 558 



3,465 





82.69 



-200 





100 



8.5 



47.30 



22 



71.60 



May 1— . 



19, 941 



20, 063 





122 



100.61 



-320 





100 



8.5 



47.30 



22 



71.60 



2— 



26, 475 



26, 099 



376 





98.58 



-150 





94 



11 



51.80 



27 



80.60 



3— 



11, 389 



10, 288 



1,101 





90.33 



110 





6 



16 



60.80 



20 



68 



7... 



31, 926 



31, 185 



741 





97.68 



-150 





94 



18 



64.40 



28 



82.40 



8... 



33, 253 



33, 687 





434 



101. 31 



320 



9.5 



100 



15 



59 



25 



77 



9... 



39, 765 



39, 313 



452 





98.86 



500 



12.7 



80 



12 



53.60 



24,5 



76.10 



11— 



55, 231 



59, 658 





4,427 



108. 02 



1,440 



24.1 



100 



16 



60.80 



30 



86 



12— 



44, 931 



48, 875 





3,944 



108. 78 



490 



10.0 



46 



17 



62.60 



24 



75.20 



13... 



50, 869 



58, 887 





8,018 



115. 76 



940 



15.9 



64 



16 



60.80 



26 



78.80 



15— 



54, 061 



54, 528 





467 



100. 86 



850 



15.6 



76 



14 



57.20 



25 



77 



16 - 



67, 863 



60, 377 



7,486 





88.97 



870 



14.4 



87 



11 



51.80 



28.5 



83.30 



17— 



22, 992 



23,218 





226 



100. 98 



220 



9.5 







14 



57.20 



20 



68 



18 -. 



29,247 

 65, 407 

 71, 008 



30, 478 

 66, 898 

 66, 844 



4,164 



1,231 

 1,491 



104. 21 

 102. 28 

 94.14 











84 

 68 



18 

 15 

 10 



64.40 



59 



50 



20.75 

 23.25 

 25.5 



69.35 



19 .- 







73.85 



20— 



1,170 



17.5 



77.90 



21 — 



61,438 



56, 135 



5,303 





91.37 



920 



16.4 



75 



14 



57.20 



29 



84.20 



22— 



49, 078 



44,597 



4,481 





90.87 



1,130 



25.3 



79 



17 



62.60 



30 



86 



23„. 



51, 854 



48, 268 



3,586 





93.08 



890 



18.4 



88 



15.5 



59.90 



30 



86 



24— 



65, 259 



63, 395 



1,864 





97.14 



560 



8.8 



99 



15 



59 



28 



82.40 



26— 



42,138 



38, 356 



3,782 





91.02 



130 



3.4 



23 



19 



66.20 



26 



78.80 



27„. 



10, 588 



10, 030 



558 





94.73 



-330 





6 



14 



57.20 



21.5 



70.70 



28— 



47, 397 



42,663 



4,734 





90.01 



100 



2.3 



94 



17 



62.60 



23 



73.40 



29... 



51, 640 



49, 338 



2,302 





95.54 



-200 





99 



8.5 



47.30 



26 



78.80 



30... 



52, 987 



49, 534 



3,453 





93.48 



-130 





100 



13 



55.40 



27 



80.60 



31 — 



49, 474 



50, 580 





1,106 



102. 24 



-80 





70 



13 



55.40 



27 



80.60 





44, 882 

 30, 852 

 58, 564 



45, 693 

 28,499 

 56,128 



2,353 

 2,436 



811 



101. 81 

 92.37 

 95.84 











14 



77 



17 

 20 

 16.5 



62.60 



68 



61.70 



24 

 26 

 30 



75.20 



2 







78.80 



4„. 



-290 





86 



5 



28, 432 



54, 772 



29, 830 

 53, 883 



889 



1,398 



104. 92 

 98.38 







3 



59 



19 

 20 



66.20 

 68 



24 



31 



75.20 



6... 



-50 





87.80 



8„. 



51, 531 



49, 607 



1,924 





96.27 



60 



1.2 



54 



19 



66.20 



31.5 



88.70 



9... 



55, 678 



52, 066 



3,612 





93.51 



-120 





45 



21 



69.80 



28 



82.40 



11— 



48,043 



50,524 





2,481 



105. 16 



-90 





81 



22 



71.60 



31.5 



88.70 



12 



39,231 



30, 423 



3,399 



17, 980 



39, 915 



29, 266 



3,501 



20, 447 



1,157 



684 



102 

 2,467 



101. 74 

 96.20 

 103.00 

 113.72 







97 

 66 

 

 54 



20.5 

 10 

 17 

 18 



68.90 

 50 



62.60 

 64.40 



28 

 22 

 18 

 29 



82.40 



13 







71.60 



14 







64.40 



21— 



-20 





84.20 



22... 



25, 654 



26, 617 





963 



103. 75 



-340 





94 



17 



62.60 



24.5 



76.10 



23... 



41,361 



37,244 



4,117 





90.05 



-610 





91 



15 



59 



28.5 



83.30 



24... 



39, 667 



36, 505 



3,162 





92.03 



-110 





81 



12 



53.60 



31.5 



88.70 



25— 



45, 182 



42, 060 



3,122 





93.09 



-160 





96 



18.5 



65.30 



32.5 



90.50 



26— 



35, 789 



31, 046 



4,743 





86.75 



-30 





74 



18 



64.40 



29.5 



85.10 



29... 



32, 173 



25, 941 



6,232 





80.63 



-300 





61 



20.5 



68.90 



29 



84.20 



30... 



34, 974 



28,807 



6,167 





82.37 



-380 





98 



19 



66.20 



33 



91.40 



July 1— 



37, 834 



30, 626 



7,208 





80.95 



-110 





64 



23 



73.40 



34 



93.20 



2„. 



38, 339 



29,880 



8,459 





77.94 







64 



20 



68 



35 



95 



i The hive was not on scales for the first few days of observation. On some later days an accumulation 

 of moisture on the tops and on the bottom-board introduced erroneous records of weight, and such days 

 have been omitted from this table. 



2 Figures in this column indicate the minimum limit of the average loads for the day and not the actual 

 average load. Since consumption of stores and evaporation continue throughout the day, the actual 

 average load can not be obtained from weights of the entire hive. This limit can only be determined for 

 those days when the hive showed a gain due to incoming nectar. 



