On each trial, subjects were presented with two sets of bottles in random order: One set contained the odorant stimulus and the other contained only the diluent (blanks).
For this purpose, the participants were requested to identify a bottle containing phenyl-ethyl alcohol [99%, Fluka, Germany, 1∶200 (v/v) diluted in 1,2-propanediol] in a set of three bottles, with the remaining two bottles containing the same volume of solvent (two consecutive trials).
Benjamin Franklin built a set of glass bottles that stored electricity and released it all at once; he called it a battery because, like guns, the bottles fired simultaneously.
Or buy a set of little bottles of food coloring, which you can use for all kinds of projects such as tie-dyed cake.
Coagulase-negative staphylococci, diphtheroids, and Bacillus species were considered to be blood culture contaminants when isolated from one culture bottle of a set, or when another set of blood culture bottles was sterile.
Another, titled "How to Make Garbage Invisible," consists of a set of disposable plastic bottles decorated with stripes of melted black silicon.
In February, the Shrivers decided to test their pipes, and Andrea Varrato, an environmental scientist for a consultancy called Downstream Strategies, arrived at the front door with a set of amber-glass bottles to collect samples.
Singh began collecting in earnest in the mid-1980s, paying $600 for a set of four dozen bottles.
(Given the quality of the cafeteria — where long tables are set with bottles of Pellegrino and wine, and local ladies serve minestre, pastas, platters of grilled meat, and salad — a nap is recommended).
