Geology

Volume, Title, and Unique Books data collected on June 27, 2001.
Circulation statistics for the ALC fiscal year ending May 31, 2001.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Geology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899	4		4	1	3	12
1900-1909	3		1	2	3	9
1910-1919	12		18	3	1	34
1920-1929	24		45	8	3	80
1930-1939	33		67	14	4	118
1940-1949	39	2	69	14	13	137
1950-1959	95	6	222	73	37	433
1960-1969	82	44	276	141	26	569
1970-1974	63	26	151	75	16	331
1975-1979	57	36	117	84	13	307
1980-1984	74	24	148	138	7	391
1985-1989	20	22	136	95	8	281
1990-1994	23	59	92	21	16	211
1995	2	10	13	11	1	37
1996	3	13	18	5	2	41
1997	3	12	21	3	1	40
1998	1	10	10	8		29
1999	1	11	12	5	9	38
2000	1	7	4	3	7	22
2001
2002
Totals	540	282	1,424	704	170	3,120
Average Age	1963	1983	1968	1973	1967	1969
Percent of Collection	0.26%	0.16%	1.05%	0.53%	0.25%	0.43%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Geology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899	4		4	1	3	11
1900-1909	3		1	1	3	8
1910-1919	10		16	2	1	25
1920-1929	22		36	7	3	57
1930-1939	27		44	13	3	75
1940-1949	35	2	58	13	11	98
1950-1959	71	5	166	45	15	256
1960-1969	73	41	240	134	22	440
1970-1974	50	25	138	71	16	251
1975-1979	55	33	106	82	13	234
1980-1984	72	24	141	130	7	314
1985-1989	18	21	121	93	8	216
1990-1994	19	52	76	17	16	164
1995	2	8	13	10	1	29
1996	3	12	17	5	1	34
1997	3	11	20	3	1	33
1998	1	7	9	8		23
1999	1	9	12	5	8	26
2000	1	7	4	3	7	18
2001
2002
Totals	470	257	1,222	643	139	2,312
Average Age	1964	1983	1969	1974	1969	1970
Percent of Collection	0.26%	0.19%	1.03%	0.54%	0.23%	0.45%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Geology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1600-1699
1700-1799
1800-1899	4		3	1	2
1900-1909	3		1		3
1910-1919	6		12	1
1920-1929	10		19	4	2
1930-1939	17		26	7	1
1940-1949	19		41	3	5
1950-1959	41	1	108	22	5
1960-1969	40	19	173	81	10
1970-1974	24	16	93	43	10
1975-1979	31	20	61	38	6
1980-1984	38	13	101	84
1985-1989	6	11	77	59	3
1990-1994	12	36	53	9	7
1995	1	4	11	5
1996	2	9	11	3
1997	2	7	13	2
1998	1	1	8	3
1999	1	5	6	1	1
2000	1	4	3	2	2
2001
2002
Totals	259	146	820	368	57
Average Age	1962	1984	1969	1974	1963

Total Circulation

A count of charges and renewals for Geology. This count only includes circulation of bound monographs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	21	1	2	0	0	0	24
APL Items	2	191	10	1	0	0	204
HSU Items	5	0	44	12	0	0	61
McM Items	1	0	0	25	0	0	26
HPU Items	0	0	0	0	0	28	28
Totals	29	192	56	38	0	28	343

Circulation by Item Age

A count of charges and renewals for Geology, broken down by item age and item owner. This count only includes circulation of bound monographs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1600-1699
1700-1799
1800-1899
1900-1909
1910-1919			2			2
1920-1929
1930-1939
1940-1949			1	1	2	4
1950-1959	5	2	3	1		11
1960-1969	2	7	3	5	1	18
1970-1974	2	5	8		5	20
1975-1979	3	18	8	2	9	40
1980-1984		10	10	5		25
1985-1989	1	6	7	4		18
1990-1994	9	68	8	6	10	101
1995		15	1			16
1996	2	10	3			15
1997		13	3			16
1998		18	1	2		21
1999		27	3			30
2000		5			1	6
2001
2002
Totals	24	204	61	26	28	343
Percent of Circulation	0.05%	0.06%	0.25%	0.21%	0.39%	0.08%

Non-Circulating Use

A count of Non-Circulating usage for Geology (as recorded by the circulation "NC" command). This count only includes bound monographs.

ACU	APL	HSU	McM	HPU
18	15	88	4	22

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