Wid a Banjo on my Knee / words by Kenneth Bradford

Cover: drawing of an African American male playing banjo and singing to an African American female; Publisher: Oliver Ditson Co. (Philadelphia)https://egrove.olemiss.edu/sharris_e/1056/thumbnail.jp

Carry My Back to Old Virginny / words by James A. Bland

Cover: drawing of an African American family sitting in the courtyard, a man playing Banjo, a woman dancing with a child; Publisher: Oliver Ditson Company (Boston)https://egrove.olemiss.edu/sharris_b/1074/thumbnail.jp

Doan Ye Cry Ma Honey / music by Albert V. Noll; words by Albert V. Noll

Cover: description reads darky song; Publisher: Oliver Ditson Company (Boston)https://egrove.olemiss.edu/sharris_a/1047/thumbnail.jp

Uncle Tom\u27s Lament for Eva / words by I. B. Woodbury

Cover: He strikes his harp immortal. To Evas gentle song.; Publisher: Oliver Ditson (New York)https://egrove.olemiss.edu/sharris_a/1005/thumbnail.jp

The Rainy Day / music by William R. Dempster; words by Henry Wadsworth Longfellow

Key of F. Cover: n/graph.; Publisher: Oliver Ditson Company (Boston)https://egrove.olemiss.edu/sharris_a/1001/thumbnail.jp

Carry Me Back to Old Virginny / music by James A. Bland; words by James A. Bland

Cover: drawing of African Americans hanging out next to a building, one man is playing a banjo (see 336); Publisher: Boston-Oliver Ditson Company (New York)https://egrove.olemiss.edu/sharris_b/1065/thumbnail.jp

Doan Ye Cry, Ma Honey / words by Albert W. Noll

Cover: text reads: Songs in Negro Dialect; Publisher: Oliver Ditson Company (Boston)https://egrove.olemiss.edu/sharris_a/1061/thumbnail.jp

Modified reaction centers from Rhodobacter sphaeroides R26

Incubation of photosynthetic reaction centers from Rhodobacter sphaeroides R26 with exogenous 132-OH-bacteriochlorophyll ap or aGG according to Scheer et al. (1987) results in the exchange of endogenous bacteriochlorophyll ap. The exchange amounts to less-than-or-equals, slant 50% according to HPLC analysis, corresponding to a complete replacement of the ‘monomeric’ bacteriochlorophylls, bm and bl, by exogenous pigment. The absorption spectra show small, but distinct changes in the Qx-region of the bacteriochlorophylls, and bleaching of the modified reaction centers is retained. The corresponding binding sites must be accessible from the exterior, and allow for the introduction of a polar residue at C-132. This is supported by the observation of side reactions of the endogenous ‘monomeric’ bacteriochlorophylls within the reaction center pigments, e.g. epimerization and hydroxylation at C-132

Modified bacterial reaction centers

Pigments of borohydride-treated reaction centers of Rhodobacter sphaeroides R 26 and Rhodopseudomonas viridis were analyzed by HPLC with polychromatic detection. In both species, pigment composition and contents were unchanged. Reaction centers from Rhodobacter sphaeroides R26 were prepared in which bacteriochlorophylls (BA,B) and bacteriopheophytins (HA,B) were exchanged with their potential borohydride products reduced at C-31. [3-Hydroxyethyl]-BChl a exchanges selectively into the BA,B pockets, and 31-OH-BPh a to the HA,B pockets. Stable reaction centers are obtained in both cases. A comparison of the absorption and circular dichroism spectra of reaction centers after exchange with 31-OH pigments, and of borohydride-modified reaction centers, reveal distinct differences. It is concluded that during borohydride reduction none of the pigments is chemically modified or extracted from the reaction centers