BACTEKIOLOGICAL DATA. 37 



Shell oysters from various sources showing satisfactory bacteriological results. 







Organisms per 



Gas-producing 

 isms (each 



organ- 

 score 













cc. "' 



at — 



based 



on 5 oysters). 









No. 



Date. 













Score. 



Source. 







25° C. 



37° C. 



In 1 cc. 



In 



0.1 cc. 



In 

 0.01 cc. 







1910. 



















1 



Mar. 11 



3,600 



500 



4 



1 







5 



Lower Providence River. 





2 



Mar. 25 



3,800 



1,800 



2 



1 







3 



Great South Bay, Long Island, N 



Y. 



3 



...do 



6, 100 



700 



2 



2 







4 



Do. 





4 



...do 



1,100 



230 



1 



1 







2 



Do. 





5 



...do 



3,000 



1,000 



















Do. 





6 



...do 



600 



230 



1 











1 



Do. 





7 



...do 



500 



50 



1 



1 







2 



Do. 





8 



Mar. 29 



3,800 



400 



1 











1 



Do. 





9 



...do 



10,500 



4,400 



2 











2 



Do. 





10 



...do 



9,900 



200 



10 



10 











Do. 





11 



...do 



4,000 



2,700 



2 



1 







3 



Do. 





12 



...do 



10,000 



2,000 



1 



1 







2 



Do. 





13 



Apr. 9 



5,000 



2,000 



4 











4 



Delaware Bay (unfloated). 





14 



...do 



7,000 



1,000 



3 











3 



Do. 





15 



Nov. 18 



3,000 



3,000 



4 



1 







5 



Great Kills, Staten Island, N. Y. 





16 



Dec. 2 



60,000 



2.000 



26 



21 







2.5 



Do. 





17 



Dec. 10 



600 



1,100 



4 



1 







5 



Do. 





18 



Dec. 13 



13,000 



100 



4 



1 







5 



Do. 





19 



Dec. 14 



100.000 



6,000 



2 











2 



Source not determined. 





20 



...do 



92,000 



5,000 



4 



1 







5 



Do. 





21 



Dec. 16 



90,000 



700 



4 



1 







5 



Great Kills, Staten Island, N. Y. 





22 



...do 



40,000 



3,000 



2 











2 



Oyster Bay, Long Island, N. Y. 





23 



Dec. 31 



150 



20 



1 











1 



Great Kills, Staten Island, N. Y. 





24 



...do 



1911. 



2,700 



100 



5 











5 



Do. 





25 



Jan. 6 



50,000 



2,000 



4 



1 







5 



Market oysters; source undetermined. 



26 



...do 



13,000 



3,000 



1 











1 



Great Kills, Staten Island, N. Y. 





27 



...do 



11,000 



300 



3 











3 



Do. 





28 



...do 



20,000 



(3) 



1 











1 



Do. 





29 



Jan. 13 



14,000 



2,400 



4 











4 



Do. 





30 



...do 



4,000 



800 



5 







■ 



5 



Do. 





31 



Jan. 14 



20,000 



1,000 



4 











4 



Patuxent River, Md. 





32 



...do 



80,000 



60,000 



3 











3 



Do. 





33 



...do 



60,000 



16,000 



4 











4 



Do. 





34 



Jan. 20 



50,000 



3,000 



5 











5 



Norfolk, Va. 





35 



Feb. 21 



11,000 



2,000 



2 



1 







3 



Patuxent River, Md. 





36 



...do 



6,000 



800 



2 



2 







4 



Warwick River, Md. 





37 



Feb. 27 



70,000 



3,000 



1 



1 







2 



Great Kills, Staten Island, N. Y. 





38 



Nov. 10 



44,000 



10,000 



4 



1 







5 



Norfolk, Va. 





39 



Nov. 16 



8,000 



4,000 



4 



1 







5 



Do. 





40 



Nov. 17 



2,600 



400 



3 











3 



"Cherrystones," from Virginia. 





41 



...do 



1,200 



1,100 



5 











5 



Do. 





42 



Nov. 22 



2,500 



1,000 



1 











1 



Great South Bay, Long Island, N 



Y. 



43 



...do 



7,000 



6,000 



2 



2 







4 



Norfolk, Va. 





44 



...do 



8,000 



4,600 



4 



1 







5 



Do. 





45 



...do 



16,000 



8,000 



3 



2 







5 



Do. 





46 



Nov. 27 



250,000 



100,000 



3 











3 



New York, N. Y. 





47 



...do 



15,000 



2,000 



3 



1 







4 



Do. 





48 



Dec. 14 



120,000 



20,000 



2 











2 



Nanticoke River, Md. 





49 



Dec. 4 



37,000 



22,000 



3 



2 







5 



Norfolk, Va. 





50 



Dec. 16 



10,000 



8,000 



4 



1 







5 



Chincoteague, Va. (unfloated). 







<3 31 





Out of 4 oysters. 



2 Out of 14 oysters. 



3 Less than 100. 



Average score. 



Note. — These oysters were examined according to the recommendations of the Committee on Stand- 

 ard Methods of Shellfish Examination. 



