A survey of the results of recent work indicates that at least six different substances are concerned in one way or another in the process of blood coagulation; namely, fibrinogen, thrombin, prothrombin, calcium, antithrombin and the so-called zymoplastic or thromboplastic substances furnished bv the body cells in general, including the blood corpuscles. With regard to the last mentioned factor...

An attempt is reported to link changes in thylakoid lipid composition with the electron-transport and ATP-formation capability of the chloroplast. The observation that the monogalactolipid : phosphatid-ratio (M GDG/PL) of leaf sections shows a linear correlation with the P/2e value of simul­ taneously isolated Jensen-Bassham plastids was followed up experimentally for an in vitro plastid system...

The most marked chemical changes in a disintegrating spleen are noticed during the period when karyorrhexis and karyolysis are the characteristic features. When pyknosis alone is prominent almost all of the several constituents are in the coagulable or precipitable fraction, just as they are in the original normal tissue. After karyolysis is practically complete the coagulable and precipitable ...

e"> In order to study the effective factors on the quality and quantity of lecithin extracted from soybean oil and the residual amount of phosphatids in degummed oil, this study <span style="font-size:...