10 



Trans. Acad. Sci. of St. Louis 



(TUsImmI insects, mostly small beetles, from the craw. 

 About a tortnig'ht old they are i'vd from the bill with soft 

 insects of the size of lar^^e flies, but insects with stings, 

 such as bees and wasps, are never Itrou^lit. Wiien four 

 weeks ohl, lar<<'e tlra.ii:onfli('S, t^rasshoppers and butter- 

 flies make the prin<'ipal food. 



Tlie young Martins do not leave their box until they 

 are six weeks old. 



The t^il)l«' ntM'ds no further ex])laiuition except that the 

 occupants of the sixteen boxes were of all ages, from one 

 week old in NO. (I to five weeks in Xos. lL\ 10, 17. 



The number of hungry mouths has something to do 

 with the fre(piency of the visits. No. 7. whicli heads the 

 list, has four young ones (four weeks old), while most 

 of the other boxes have three. No. 10 has onlv two. 



WEATHER CONDITIONS. 



75*. t»lm, cle«r 



74' 



77* to 84*. wlndlltht. S. . .. 



84* to 85* 



S.'i* to86* 



86* to 87* 



87* to 89*, •tod lorrfastoi 8. 



98*, mi.m ii 1 r arhuic, wind ihinins to W. 



83*, r» DC at 1:25 



78*. r»- . L'45 



80*. cluruiK, caio 



79* 



79* to 82*. winds. W 



82* to 81*, cAlm. clmf 



81* to 80*. t»lni, dtu. . . - 



Time. 



I I I I I I I 

 No. INo. ISo. No. (No. |No. iNo. 



7 1 12 17 51 111 10 24 



I I I I I I I 



< I I I I I 

 No. No. I.No. INo. (No. [No. 'No. 



2S 22 16! 36 II 14' 26 



4 to r, 

 i, to 6 

 fi to 7 

 7 to 8 



5 to 9 

 9 In 10 



10 tn II 



11 to 12 



12 t« I 

 1 to 2 

 2(0 3 



3 to 4 



4 Ui .') 

 .''> to fi 

 fi to 7 

 7 V> 8 



A.M.( 



11| 

 12 

 19 



9| 

 W 



4' 



9 



151 



IS, 



41 101 7 



121 12! 8 



91 221 12 



14( 17( 9 



'S' 211 9 



. 17( 15 



-: 20' 12 



241 lOi 16 



171 23, If 

 7 

 4 



311 3S| Xi 

 14 



6 



lOl 

 111 



51 

 121 



14 131 

 15 1 20 

 9 13| 

 141 IS 

 131 20| 



71 



321 



6 



8 



8 

 141 14 

 13! 19 

 221 12 14 

 17' 17, 13 

 12 10 

 13; 10 



8 



71 



14 17 

 121 121 

 121 151 



131 131 



14 121 



111 101 



10 in 



IS 



14 

 8 

 7 



241 



12' 11 



81 10 



71 10 



11' 7 



6! 10 



8' 4 



6! Hi 



111 7; 



14! 121 



in' 0' 



11 



71 



9! 12 

 18 15 



8! 11 



10' 



4i 

 ir 



No. I No 

 19 6 



fl. 



:<: :v. ic- 



1 

 5 

 4 



6 



9 

 10 



7 



5 



5 



2 



6 



8 



5 



6 



5 



7 

 901.3277 



85 

 118 

 171 



2m 



232 

 276 

 2S5 

 217 

 2S0 

 133 

 119 

 459 

 224 

 166 

 196 

 177 



