46 BULLETIN OF THE BUREAU OF FISHERIES. 
It is likewise plain that the temperatures decline noticeably as we pass toward the 
open ocean, the maximum temperature being found at the head of Buzzards Bay, the 
minimum at the mouth of Vineyard Sound. There was, however, at the time of the 
June observations, no abrupt fall of temperature beyond Robinsons Hole. 
Annual temperature cycle-——Before discussing the probable significance of these 
observations upon the waters of Vineyard Sound and Buzzards Bay, mention must be 
made of the annual temperature cycle at Woods Hole. 
TABLE 9.—AIR TEMPERATURE AT Noon: Woops HOLE STATION. 
| 
January. February. March. | April. 
Years. rae aaa, ER a Ca Es AGRA Las ee 
Max. | Min. | Mean. |Max.| Min. | Mean. | Max.| Min. | Mean. |Max.| Mia. | Mean. 
QOD eee rele ia leet ninie' asa Deralebesereicielsivie|.='s'stalels cielnie 46 Iz2| 30.3 « 42 62 4° 49-4 
CO e BR asiab Gao PCRS RE NEe 2oqO adap GOURD DOUOnUL 46 10} 32.5 52 65 36 50-3 
GOA tector oreinoiereieletlaialslelo/arejeieisis| sels lar= 45 2 26.3 45 58 36 45-4 
Ce Gepigndonn Be CaanaDn sagaoc cncnodeacidoonoc 47 14 | 29-1 41 57 37 47-7 
(Ne Oa HGonAGEn oe TERE on poe CUS SOA AS eonoe 53 18 | 37-0 47 59 38 48-9 
Ive Years... 5 soattaae co eile eh odors 53 2 31-03 52 65 36 48.33 
= 
May. August. 
Years. l 
Max. | Min. | Mean. | Max. Max.| Min. | Mean. 
QOD carat crestor lee clnlepiocieieecatiemiacyelat 66 49 | 57-6 71 78 64 71-9 
GOS rie rere cates se stats forces foeve/ ei tlatelettatetal 76 46 | 60.7 qI 76 57 70.1 
ee ea Seeing HOOE DO COC CORED OL OO DIOGGO CS 68 54| 60.5 76 79 65 72-4 
TG hid USES DC OR OAISDOGEcae Od IDO ocopotdsads. 69 50] 58-4 78 80 60 70.4 
TO) a nan ae cadonEOlgn soon aood Acoucdoasac 67 45 58.9 81 82 67 75-0 
IBIVEV EATS J ercey ccc tiers cicbeeistets erent 76 45 | 59-21 81 82 57 91-95 
September. October. November. December. 
Years. eT 7 
Max. | Min. | Mean. |Max.| Min. | Mean. | Max.| Min. |} Mean. | Max.| Min. | Mean. 
~s 
EOD NT a erercto eis clolessicisis cieis\eiaro'eleiei a) w\erareie(elelols 75 61 | 67-9 68 4I 57-7 59 38 | 507 47 2 33-6 
1 of ARO He FGU.S HI OPIDIOS SOG OOHE CED cuits 78 54 | 67-6 68 40 | 57-8 60 25 | 43-6 50 16 32-5 
POOF. a OOO OC OOO OOD OOOO D Ste the tales 74 48 | 65.8 69 38 54-9 54 27 | 42-1 47 15 30-7 
PERC ee are eee Notes etayel al olotcl oils ataier nicheltalcyskckorcicve 71 5r 66.1 69 45 57-7 59 28 | 44-9 55 25 39.8 
ROO ae eel clafarels slatctotny sre & aversen hoe wel era: wroe/ stefan 75-5 58 67.7 70 49 58.9 57 33 45-1 48 9 33-4 
IVE VCATS oh sen seis <tc ds ols wlepele ease 78 48 | 67.01 70 38 57-39 60 25 45-29 55 2 33-82 
ee ee eee eee 
