A computer program conceived as an aid to chemistry students is presented for the calculation of the stoichiometric coefficients of chemical equations~ Once these coefficients are calculated, the entire corresponding chemical equation with the respective coefficients is shown on the screen. The program is run from an “Options Menu”, so the user does not have to learn commands. To compute the st...

This communication deals with the detailed pharmacognostical aspects of commiphora mukul leaves which include morphological and anatomical characters and preliminary phytochemical analysis of the leaves. The microscopical characters of leaf powder are also reported with its salient features. The fluorescent behaviour of powdered drugs with some chemical reagents is also examined.

The macroscopic character of the leaflets ash values extractive values by different solvent extractive behavior on treatment with different chemical reagents fluorescence characters by treatment with different chemical reagents of the powdered leaves of Maoringa oleifera lam (fam moringaceae) were studied to fix some pharmacognostical parameters, chemical group test of different extracts of the...

The plant Coldenia procumbens Linn. is used commonly in Indian system of medicine for various ailments. The present paper deals with detailed pharmacognosy of the leaf of coldenia procumbens Linn. and includes its Macro/Micro morphological (vein islet, vein termination numbers and stomatal index) anatomical characters, Physico chemical standards such as ash values, extractive values, crude fibr...

The fire ants, Solenopsis invicta and S. richteri, were accidentally imported into the United States in the first half of this century from South America. In their adopted habitat the imported fire ants have thrived causing considerable medical and agricultural problems in the nine widely infested states of the south and southeast. The red imported fire ant, S. invicta was considered the domina...

Chemical plant taxonomy or chemotaxonomy of plants may be defined as a sciertific investigation of the potentialities of chemical characters for the study of problems of plant taxonomy and plant phylogeny. Plant taxonomy is the science of delimiting, describing and naming appropriately taxat and arranging them in a natural system of plants. Principles of chemotaxonomy were elaborated in the pas...