Additional observations on Codiophyllum

Additional Observations on Animal Electricity

Some Additional Observations on the Specificity of Cholinesterase

As an extension of previous investigations (1, 2) concerning the specificity of cholinesterase, the present study deals with the effect upon enzymatic hydrolysis of variations in the chain length of the acid component of choline esters. It is known from earlier work (3, 1) that increasing the normal chain length from 2 to 4 carbon atoms results in increased cnzymatic and decreased alkaline spli...

Additional observations on the rate of growth of Lactobacillus casei.

In the preceding paper (1) it was shown that the growth rate of Lactobacillus casei may be markedly affected by variations in the amount of asparagine present in the medium. This compound may be either stimulatory or inhibitory, depending upon the conditions existing; evidence was presented which indicates that asparagine is closely related metabolically to strepogenin. For example, strepogenin...

On the Identity of Spencebatea Abyssicola (Cumacea), with Additional Observations on the Genera Allied to Procampylaspis

In 1879 Norman described Spencebatea abyssicola, new genus, new species, on the basis of a single specimen from a deep-sea site off Ireland. The species was transferred to the genus Cumella by Stebbing in 1913, where it has remained. A reexamination of the specimen indicated that it belongs to the genus Procampylaspis, since it possesses the recurved, tooth-bearing dactyl on maxilliped 2 which ...

Nivalin (galanthamine hydrobromide), an additional decurarizing agent. Some introductory observations.

Galanthamine hydrobromide (Nivalin), an alkaloid from the bulbs of snowdrops, is widely used in Bulgaria as an antagonist to non-depolarizing muscle relaxants. The pharmacology is reviewed and experiences in the use of galanthamine in 24 patients are described. It is about one-tenth as potent as neostigmine. As changes in pulse rate and blood pressure were slight, it is rarely necessary to inje...