May 3, 1920.] Agricultural Gazette of N.S.W. 337 



gelatin or digest the casein of milk. They included Bact. fluorescens 

 liquefaciens, Micrococcus flavus, StajMococcics aureus, Bact. cloacce, a grani 

 positive bacillus and a sporing bacillus. The most conclusive proof that the 

 water was heavily contaminated with the organisms of fsecai origin was the 

 presence of 6,400 per c.c. of Bact. coli. Three varieties were recognised, 

 viz., Bact. coli communis, Bact. lactis cerogenes, and Bact. cloacce, all of 

 which can cause gassy fermentation of lactose, while Bact. cloacce is also 

 able to liquefy gelatin. There were 5,200 acid and acid-coagulating 

 organisms, including 2,000 streptococci and 3,200 micrococci, while 1,400 

 other bacteria caused alkalinity or no apparent change. The 1,000 moulds 

 were species of Aspergillus, Fusarium, and Mucor. 



Results of Atmospherically Exposed Plates. 



Sterile mpdia in the form of a jelly were melted, and carefully poured into 

 sterile petri dishes, and allowed to .solidif)'. These dishes were carried to 

 the respective rooms of the factory, where the lids were carefully removed, 

 and the media exposed for 2^ minutes to allow the free access of micro- 

 organisms. The media used were ordinary agar, litmus lactose agar, and 

 an acid agar specially suitable for the development of moulds. 



Plate B6. — An acid agar plate was exposed 2i minutes to the atmosphere 

 of the cream attemperator room ; it showed the development of nine 

 nK)u!d growths, including species of Penicillium, Alternaria and Aspergillus. 



Plate Bl. — An acid agar plate exposed 2| minutes to the atmosphere 

 in the churning room showed the development of two colonies of 

 Penicillium sp. 



Plate Bi, — An ordinary agar plate was exposed 2| minutes to the 

 atmosphere in the cold store room. The total micro-organisms developed 

 were twenty-one ; of these, one colony was the mould Cladosporium sp., 

 while the remainder were chroraogenic bacteria. 



{To he continued.) 



Table Grapk Varieties for Wagga District. 



Intending to plant about 4 acres with table grapes, a Coolamon orchardist 

 wished to know the best varieties for his purpose, and whether the locality 

 necessitated the use of resistant stock. 



The Viticultural Expert replied that resistant stocks were not necessary. 

 Cuttings of Black Cornichon, Waltham Cross, Doradillo, and Muscat Gordo 

 Blanco would be best, the first two to be trellised and the last-named either 

 bushed or trellised. The land on which it was proposed to plant the 

 cuttings should be subsoiled beforehand, and the cuttings should be planted 

 in rows 10 feet apart, with an allowance of 8 feet between each cutting. If 

 trellised, a bottom wire should be placed at 2 feet from the ground and a 

 .second one 18 inches above this for the shoots to cling to. Cuttings should 

 be 12 to 15 inches in length, and cut close below a bud at the base and above 

 a bud at the top. A good plan was to mound the cuttings ovei- to protect 

 them until they had burst and were growing. — H. E. Laffer. 



