Purves

Time before present. 1 Gyr = 1 billion years. After Purves et al. (1995). 

Fig. 3-10 The 20 protein amino acids divided by R group character as (a) hydrophobic, (b) hydrophilic, and (c) mixed. (Reprinted with permission from W. K. Purves and G. H. Orians, Life The Science of Biology," pp. 63-81, Copyright 1987 by Sinauer Associates, Inc., Sunderland, MA.)...

The history of the achievement of present-day understanding of the constitution of cellulose has been splendidly presented by C. B. Purves in Chapter II, A, of Cellulose and Cellulose Derivatives, ed. by Emil Ott (Interscience Publishers, New York, 1943), pp. 29-53. The author takes pleasure in acknowledging indebtedness to this source. 

Pomeroy S.L., LaMantia A.S. and Purves D. (1990). Post-natal construction of neural circuitry in the mouse olfactory bulb. J Neurosci 10, 1952-1966. 

Purves D, Augustine GJ, Fitzpatrick D, Katz LC, LaMantia A-S, McNamara JO and Williams SM (2001). Neuroscience. Sinauer Associates, Sunderland, MA. 

McLaren R.G., Lawson D.M., Swift R.S., Purves D. The effects of cobalt additions on soil and herbage cobalt concentrations in some S. E. Scotland pastures. J Agri Sci 1985 105, 347-363. 

Fig. 8.6 The muscular structure and endocrine glands of man with some specially required elements indicated. (Adapted from Purves et al., Life - the Science of Biology (5th ed.). Associates, Inc. and W.H. Freeman, Sunderland, MA.) Note that organs such as liver are rich in other elements, for example, iron. The large part of the body is linked by internal bones.

Two of the hydroxyl groups present in each glucose unit of the cellulose are secondary, one is primary. Studies on the relative rates of etherification of the three hydroxyls are not conclusive. Mahoney and Purves,18 using a method which takes advantage of the rapid reaction between tosyl chloride and a primary hydroxyl, combined with a determination of unsubstituted glycol groups, have studied the relative num-... 

Lespieau, R., Synthesis of Hexitols and Pentitols from Unsaturated Poly-hydric Alcohols, II, 107-118 Levi, Irving, and Purves, Clifford B., The Structure and Configuration of Sucrose (oipta-D-Glucopyranosyl beta-D-Fructofuranoside), IV, 1-35 Liggett, R. W., and Deitz, Victor R., Color and Turbidity of Sugar Products, IX, 247-284... 

Purves RD. Microelectrode Methods for Intracellular Recording and Iontophoresis, Academic Press, London, UK, 1981. 

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