ESSENTIALS OF VALUE 
‘““ BOSTON TRANSIT COMMISSION 
(1895-1912) 
Percentage 
Percentage feo 
Total cost. of total siructio 
Subway: 
Engineering....................... $407,475.48 9.88 11.34 
General expense (inc. commission). . 131,681.87 3.19 3.68 
Construction. . .. (i eee 3,586,002.33 86.93 100.00 
Total...... ceee.. $4,125,159.68 100.00 
East Boston Tunnel: 
Engineering. ...... vii viveds orion ys $191,466.57 5.90 6.62 
General Expense... uv. av sisi 161,134.78 4.96 5.57 
CONSIIRCtiOn. iis x wns nik sn sd rns 2,894,595.01 89.14 100.00 
Total...." se rie 'ali a sei RSS, 24. 7,100 300 TOO .00 
Boston Tunnel and Subway: 
Engineering... 0 sain ii dy od wn $417,866.25 5.05% 5.48 
General expense. «. vu. uivvs nan snes 226,441.57 2.73 3.58 
Construction. . . 0. sha oh 7,623,206.56 92.22 100.00 
Total...............0.50. 00. SS, 267,514 . 33 100.00 
Cambridge Connection: 
Engineering. oi. dv es sete vy $96,575.46 7.10 8.05 
General expense.......... vue eui.. 62,355.20 4.59 5.20 
Construction. . « . vc... EN 1,199,904.39 88.31 100.00 
Total..........0e sve savy ss oR 9T,358,535. 05 100.00 
‘““ CHARLES RIVER BASIN COMMISSION, BOSTON 
Dam, Lock, Embankments, Marginal Conduits, Etc., Completed 1909 
Percentage 
Percentage f COM 
Total cost. of total struction 
Administration. . ....s:cszs:sicasnsesss $04,011.97 
Engineering........... J vars 446,006.03 . .. . 
Construction: 
Preliminary... $10,783.86 OH «5.05 sik iw asmnlll wii viv nF Selaie isl 
Contracts. .... 2,620,671.95 . 73.10 sass snusisinindlls + «vee BN . 
Additional..... 237,433.22 6.6 TL SIE, , 
2,877,889.03 8.0 = 
Real estate. ........ SELL. 170,730.77 0 so 
$3,597,727.80 100.00 
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